搜索附件  
头雁微网 附件中心 后勤保障 档案室 Advanced Electromagnetism and Vacuum Physics: Advanced Electromagnetism and Vacuum Physics.part13.rar
板块导航
附件中心&附件聚合2.0
For Discuz! X3.5 © hgcad.com

Advanced Electromagnetism and Vacuum Physics: Advanced Electromagnetism and Vacuum Physics.part13.rar

 

Advanced Electromagnetism and Vacuum Physics:
Advanced Electromagnetism and Vacuum Physics (World Scientific Series in Contemporary Chemical Physics, 21)
By Patrick Cornille

Publisher: World Scientific Publishing Company
Number Of Pages: 792
Publication Date: 2003-09
ISBN-10 / ASIN: 9812383670
ISBN-13 / EAN: 9789812383679
Binding: Hardcover

This book is aimed at a large audience: scientists, engineers, professors and students wise enough to keep a critical stance whenever confronted with the chilling dogmas of contemporary physics. Readers will find a tantalizing amount of material calculated to nurture their thoughts and arouse their suspicion, to some degree at least, on the so-called validity of today’s most celebrated physical theories.
CONTENTS vii
PREFACE v
1 INTRODUCTION AND SURVEY 1
2 WAVE MEANING OF THE SPECIAL RELATIVITY THEORY . . . 5
2-1 Critical Review of the Interpretation of Special Relativity 5
2-2 Calculation of the Rectilinear Accelerated Motion of a Particle 8
2-3 Analysis of the Lorentz-Poincare Transformation 10
2-3-1 Constant Acceleration Motion 10
2-3-2 Constant Velocity Motion 10
2-4 Wave Meaning of the Lorentz-Poincare Transformation 11
2-5 Length Contraction and Time Dilation of a Moving Body 14
2-6 Comparison Between Elbaz and De Broglie Approaches 15
2-7 Different Meanings of the Lorentz-Poincare Transformation 16
2-8 The Concept of Simultaneity 21
2-9 Definition of Eulerian and Lagrangian Coordinates 23
2-9-1 Path Vector Definition 23
2-9-2 Lagrangian Definition 25
2-9-3 Eulerian Definition 31
2-9-4 Moving Grid Definition 33
2-9-5 Special Relativity Definition 34
3 CHANGE OF REFERENCE FRAME 35
3-1 Change of Reference Frame without Rotation 35
3-2 Change of Reference Frame with Rotation 37
3-2-1 Calculation of Positions in a Change of Reference Frame 38
3-2-2 Invariance of Distances in a Change of Reference Frame 39
3-2-3 Calculation of Velocities in a Change of Reference Frame 39
3-2-4 Calculation of Accelerations in a Change of Reference Frame . . . . 41
3-2-5 Derivative of a Vector in a Rotating Reference Frame 42
3-2-6 Equivalence Between the Lorentz Force and Non-inertial Terms . . . 43
3-2-7 Calculation of the Stress and Rotation Dyads in a Change of
Reference Frame 45
3-2-8 Covariance and Invariance of Quantities in a Change of Coordinates . 46
viii ADVANCED ELECTRO-MAGNETISM AND VACUUM PHYSICS
3-2-9 Covariance and Invariance of Quantities in a Change of
Reference Frame 47
3-3 The Relativistic Invariants and the Definition of Velocities 48
3-3-1 The Relativistic Invariants and the Lorentz Transformations . . . . 48
3-3-2 The Relativistic Invariants in Frequency-wave Number 51
3-3-3 The Relativistic Invariants in Space-time 52
4 RELATIVISTIC AND CLASSICAL MECHANICS 55
4-1 Definition of Absolute and Relative Quantities 55
4-2 The Addition Law of Velocities 59
4-3 Newton's Third Law and the Principle of Energy Conservation 66
4-3-1 Work of a Force Along a Trajectory 66
4-3-2 Work of a Force Along a Curve 67
4-3-3 Particular Definition of the Conservation Law of Energy 68
4-3-4 Fluid Definition of the Conservation Law of Energy 72
4-4 Principles of Relativity and Covariance in Galilean Mechanics 74
4-4-1 Principle of Relativity in Galilean Mechanics 74
4-4-2 Covariance and Invariance in a Change of Coordinates 78
4-4-3 Principle of Covariance in Galilean Mechanics 81
4-5 Principles of Relativity and Covariance in Relativistic Mechanics . . . . 84
4-5-1 Inertial Reference Frame and Principle of Equilibrium 86
4-5-2 The Reciprocity Concept and Newton's Third Law 88
4-5-3 The Concept of Speed Limit 92
4-5-4 Dependance of the Light Velocity on the Receiver Motion 94
4-6 Definitions of Potential and Kinetic Energy 94
4-6-1 Application of Newton's Third Law 95
4-6-2 Internal and External Forces in a System of Particles 99
4-6-3 Partition of Forces Using Jacobi Coordinates 102
4-7 Review of Angular Momentum Definition 105
4-7-1 Definition of Angular Momentum 105
4-7-2 Orbital and Spin Angular Momentums of a Particle System . . . 106
4-8 Experimental Tests of Partition of Forces Between Internal and
External Forces 109
4-8-1 Elastic Collision Between Two Particles 109
4-8-2 Inelastic Collision Between Two Particles 113
CONTENTS ix
4-8-3 Energy and Momentum of a System of Relativistic Particles . . . 114
4-8-4 Collision of Radiation with Matter 115
4-8-5 The Tolman Experiment 120
4-8-6 The Graham and Lahoz Experiment 122
4-8-7 The Barnett Experiment 125
5 EXPERIMENTAL TESTS OF SPECIAL RELATIVITY 129
5-1 Doppler and Aberration Effects 129
5-1-1 Definition of Wave Propagation 129
5-1-2 Classical Doppler Effect and the Galilean Transformation . . . . 130
5-1-3 Classical Doppler Effect and the Inhomogeneous Waves 134
5-1-4 The Doppler Radar 136
5-1-5 Relativistic Doppler Effect 136
5-1-6 Aberration Effect 142
5-1-7 Aberration Effect for a Wave 142
5-2 The Sagnac and Michelson Interferometer Experiments 145
5-2-1 The Sagnac Experiment 145
5-2-2 The Michelson and Morley Experiment 150
5-3 The Fizeau Effect 157
5-4 Compton Effect 160
5-4-1 Corpuscular Theory of the Compton Effect 160
5-4-2 Analysis of Recoil Electrons 163
5-4-3 Wave Theory of the Compton Effect 164
5-5 The Mossbauer Effect 165
5-5-1 Experimental Confirmation of the Mossbauer Effect 166
5-5-2 Applications of the Mossbauer Effect 168
5-5-3 Corpuscular Theory of the Mossbauer Effect 169
5-6 The Twin Paradox 170
5-6-1 Case of a Rectilinear Motion 172
5-6-2 Case of a Rotational Motion 175
5-7 The Luminiferous Ether, a Necessity 180
5-8 Are the Relativistic Effects Second-order in U/c? 184
6 PARTIAL DIFFERENTIAL EQUATIONS OF SECOND ORDER 187
6-1 Definition of the Wave Equation 187
x ADVANCED ELECTROMAGNETISM AND VACUUM PHYSICS
6-1-1 Case of a Homogeneous Medium 187
6-1-2 Case of an Inhomogeneous Medium 188
6-1-3 Differential Calculus and Second-order Particular Derivative . . . 189
6-1-4 Operators Applied to Functions of Two Variables 192
6-1-5 Operators and Jacobi Coordinates 194
6-2 Spectral Analysis of the Wave Equation 197
6-3 Conservation Laws of the Wave Equation 199
6-4 Method of Separation of Variables 201
6-4-1 Case of Cartesian Coordinates 201
6-4-2 Case of Cylindrical Coordinates 202
6-4-3 Case of Spherical Coordinates 203
6-4-4 Solution of the Helmholtz Inhomogeneous Equation 205
6-5 Review of the Dissipation Concept 208
6-5-1 Definition of Dissipation 208
6-5-2 Relationship Between Dissipation, Causality and the Wave Concept 210
6-6 Review of the Dispersion Concept 213
6-6-1 Definition of Dispersion 213
6-6-2 Analysis of Dispersion in the Vacuum 217
6-6-3 Definition of Light Velocity 219
6-6-4 Transmission Line Theory 219
6-6-5 Vacuum Conductivity and the Speed Limit 222
6-6-6 The Tired-light Mechanism of Redshift in the Vacuum 223
6-7 Hyperbolic Equations of Second-order and the Soliton 224
6-7-1 The Schrodinger Equation 224
6-7-2 The Wave Equation and the Focus Wave Modes 227
6-7-3 The de Broglie and Klein-Gordon Equations 230
6-7-4 The Telegrapher Equation 234
6-7-5 Finite Energy Solutions 235
6-8 The Helmholtz Theorem 239
6-8-1 Integral Spatial Solution 240
6-8-2 Fourier Analysis 241
6-8-3 Integral Solution in Space-time 243
6-8-4 Application to Maxwell-Ferrier Equations 244
CONTENTS xi
6-9 Analysis of Rotational Fields 245
6-9-1 Analysis of Beltrami and Trkal Fields 249
6-9-2 Force-free Fields and the Virial Theorem 251
6-9-3 Ordinary Fields and the Superposition Principle 252
6-9-4 Hansen Decomposition and the Beltrami Field 254
6-9-5 Hansen Decomposition in Different Coordinate Systems 256
7 THE WAVE PACKET CONCEPT 261
7-1 Point-particle Versus Wave Packet 261
7-2 Spectral Analysis of the Mackinnon Wave Packet 263
7-3 Acceleration of a Wave Packet 267
7-4 The Electron as a Wave Packet 270
7-5 Vibration, Wave and Propagation 272
7-6 Analysis of the Size of a Signal 274
7-6-1 Analysis of Radiation of an Extended Source 274
7-6-2 Space-time Analysis of a Signal 277
7-6-3 Heisenberg Uncertainty Principle 279
7-7 Quantization of Oscillating Waves of the Ether 282
7-7-1 Continuity Versus Discontinuity 284
7-7-2 Case of Classical Mechanics 287
7-7-3 Case of a Harmonic Oscillator 290
7-7-4 Case of Relativistic Mechanics 294
7-8 The Relativistic Mass-increase with Velocity 298
7-8-1 Constant Force and Hyperbolic Motion 301
7-8-2 Classical Explanation of the Gamma Term 302
7-8-3 The Bertozzi Experiment 306
7-9 Matter Waves 306
7-9-1 The Lande Paradox and the Doppler Effect 306
7-9-2 Matter Waves, Radiation and Creation of Particles 307
7-9-3 Matter Waves and Inhomogeneous Waves 308
7-10 Formalism of Lagrange-Hamilton 311
7-10-1 Case of Classical Mechanics 311
7-10-2 Case of Relativistic Mechanics 313
7-10-3 Variational Formulation 316
xii ADVANCED ELECTROMAGNETISM AND VACUUM PHYSICS
7-11 The Ray Theory 319
7-11-1 Analysis of Propagation in an Inhomogeneous Medium 319
7-11-2 Geometrical Optics 325
7-11-3 Electron Optics 330
8 ELECTROMAGNETISM 333
8-1 The Wave-particle Duality of Light 333
8-2 Analysis of the Phase Concept 336
8-2-1 Pfaff Phase Definition 336
8-2-2 Whitham Phase Definition 338
8-2-3 Analysis of a Fourier Mode 339
8-3 Analogy Between the Moving Grid Formulation and the Transmission
Line Theory 341
8-3-1 Maxwell-Proca Equations 343
8-3-2 Maxwell-Proce and De Broglie Equations 345
8-3-3 Signification of the Photon Mass 346
8-4 The Integrating Factor Method 347
8-4-1 Maxwell-Ferrier Equations 349
8-3-2 Different Formulations of Potential 354
8-5 Definitions of Energy and Momentum Conservation Laws 356
8-5-1 Conservation Laws for the Potentials 357
8-5-2 Conservation Laws for the Electromagnetic Field . . . . . . . 359
8-5-3 Maxwell's Equations and Newton's Third Law 364
8-5-4 The Angular Momentum of the Electromagnetic Field 367
8-6 The Principle of Superposition of Fields 367
8-6-1 Case of Light Interferences 368
8-6-2 Case of Electrostatic Fields 370
8-6-3 The Linear Circuit Theory 372
8-6-4 The Carson Reciprocity Theorem 376
8-6-5 Case of the Antenna Radiation 381
8-7 The Energy Conservation and the Radiation Reaction Force 387
8-8 Different Formulations of Maxwell's Equations 391
8-8-1 Maxwell's Equations and the Galilean Transformation 391
8-8-2 Mathematical Formulations of Faraday and Ampere Laws . . . . 395
CONTENTS xiii
8-9 The Lorentz Magnetic Force and the Definition of Velocity 404
9 ELECTROMAGNETIC INDUCTION 409
9-1 Theoretical Analysis of Electromagnetic Induction 409
9-1-1 Case of the Transformer 411
9-1-2 Analysis of the Lenz Law 413
9-1-3 Experimental Analysis of the Induction Effect 421
9-2 Investigation of Topological Effects in Physics 425
9-2-1 Analysis of Helicity 426
9-2-2 Time Derivative of Helicity 430
9-2-3 Topological Effect Associated to Voltage Measurement 434
9-2-4 The Aharonov-Bohm Effect 437
9-3 Decomposition of the Electromagnetic Field 445
9-3-1 Gauge Transforms 448
9-3-2 Lorenz and Coulomb Gauges 450
10 AMPERE AND LORENTZ FORCES 453
10-1 Description of Ampere Experiments 453
10-2 Comparison of Ampere and Lorentz Forces 454
10-3 Volume Expressions of Ampere and Lorentz Forces 457
10-4 Calculation of the Self-interaction of a Circuit 462
10-5 Experimental Tests of the Ampere Force 465
10-6 Curvilinear Expression of the Ampere Force 467
10-7 The Weber Potential 470
10-8 Calculation of the Lorentz Force Between Two Charged Particles . . . 473
10-9 Fluid Approach of the Stimulated Force Calculation 484
10-10 The Trouton-Noble Experiment 486
10-11 The Biefeld-Brown Experiment 490
10-12 Experiments with Charged Discs 492
10-13 The Electrostatic Pendulum Experiment 494
10-14 The Concept of Charge 498
10-14-1 Analysis of the Charge Concept 498
10-14-2 Quantization of Charge 500
11 THE LIENARD-WIECHERT POTENTIAL 501
11-1 The Lienard-Wiechert Potential for a Constant Velocity 501
xiv ADVANCED ELECTROMAGNETISM AND VACUUM PHYSICS
11-1-1 Calculation of the Potential for U< c 503
11-1-2 Calculation of the Potential fori/ > c 503
11-1-3 Calculation of the Potential with a Null Initial Condition . . . . 504
11-1-4 Calculation of Advanced and Retarded Potentials 506
11-1-5 The Lienard-Wiechert Potential and the
Lorentz Transformation 508
11-1-6 The Lienard-Wiechert Potential and the Galilean Transformation . 509
11-2 Calculation of the Lienard-Wiechert Potential for any Velocity . . . . 514
11-2-1 The Fourier-Bessel Method 514
11-2-2 The Green Method 516
11-3 Calculation of the Vector Potential in Coulomb Gauge 519
12 ANALYSIS OF THE ELECTROMAGNETIC FIELD 523
12-1 Remarks on the Concept of Speed Limit 523
12-2 Conditions for the Existence of Radiation 524
12-1-1 Analysis from the Potential 524
12-1-2 Analysis from the Electromagnetic Field 526
12-3 Critical Review of the Radiation Concept 529
12-4 Calculation of the Lamb Shift 530
12-5 Derivation of Retarded and Advanced Quantities 533
12-5-1 Calculation of Time Derivatives 534
12-5-2 Calculation of Space Derivatives 535
12-6 Field Calculations from the Lienard-Wiechert Formulation 537
12-7 Field Calculations from the Feynman Formulation 540
12-8 Field Calculations with Initial Conditions 541
12-9 Field Calculations Far from the Charge 542
12-10 Relationship Between the Radiated Power and the Absorbed Power by
Unit of Solid Angle 544
12-11 Power Radiated by a Charge 545
12-11-1 Calculation from the Electric Field 545
12-11-2 Calculation from the Particle Acceleration 547
12-11-3 Angular and Spectral Distribution of the Energy Received by
an Observer 548
13 PHOTONICS VERSUS ELECTROMAGNETISM 551
13-1 Definitions and Basic Concepts in Radiative Transfer 551
CONTENTS xv
13-1-1 Spectral Radiative Intensity 551
13-1-2 Spectral Radiative Energy 552
13-1-3 Spectral Radiative Flux 552
13-1-4 Spectral Radiative Pressure 553
13-1-5 The Ray Concept 554
13-2 The Blackbody Radiation 555
13-3 Working Principle of the Laser 556
13-4 The Correlation Function 558
13-5 Comparison Between Photonics and Electromagnetism 562
13-6 Decomposition of the Radiation Field in Fourier Modes 566
13-7 Stochastic Electrodynamics 568
14 RADIATION OF EXTENDED SOURCES 571
14-1 Analysis of the Dipole in Uniform Motion 571
14-1-1 The Hertz Formulation 571
14-1-2 Calculation of the Electromagnetic Field 572
14-2 The Radiation of Antennas 575
14-2-1 Analysis of the Antenna Radiation Field 575
14-2-2 The Part Played by the Ions in the Operation of an Antenna . . 579
14-2-3 Different Operating Modes of an Antenna 580
14-3 Analysis of the Radiative Wiggler 583
14-3-1 Operation of a Free Electron Laser 583
14-3-2 Analysis of a Free Electron Laser 587
14-3-3 Analysis of the Smith-Purcell Radiation 588
15 THE GREEN FORMULATION 591
15-1 Definition of the Green Formulation 591
15-1-1 Scalar Case 591
15-1-2 Vectorial Case 592
15-1-3 Dyadic Case 592
15-2 Analysis of the Green Formulation 594
15-2-1 Scalar Case 594
15-2-2 Vectorial Case 596
15-2-3 Dyadic Case 599
15-2-4 Stratton Formulation 602
xvi ADVANCED ELECTROMAGNETISM AND VACUUM PHYSICS
15-3 The Helmhotz-Kirchhoff Principle 604
15-3-1 Scalar Formulation of the Helmholtz-Kirchhoff Principle . . . . 604
15-3-2 The Fresnel and Fraunhofer Diffraction 608
15-3-3 Vectorial Formulation of the Helmholtz-Kirchhoff Principle . . . 609
15-4 Application to Electromagnetism in a Material Medium 609
15-4-1 The Fizeau Effect, First Approach 611
15-4-2 The Fizeau Effect, Second Approach 612
15-4-3 Case of a Medium at Rest 614
15-5 The Green Formulation in an Infinite Space 615
15-6 The Green Formulation in Space-time 619
16 WAVE EXTINCTION IN A DIELECTRIC 625
16-1 The Polarization Vector 625
16-2 The Lalor Extinction Theorem 627
16-3 The Sein Extinction Theorem 629
16-4 The Pattanayak-Wolf Extinction Theorem 630
16-4-1 Case of a Source Localized in V 630
16-4-2 Case of a Source Localized in V 631
16-4-3 Discontinuities of the Electromagnetic Field 632
16-4-4 The Formulation of Pattanayak-Wolf 633
16-5 Application of the Extinction Theorem 635
16-5-1 The Laws of Reflection and Refraction 635
16-5-2 The Laws of Diffusion and Diffraction 635
17 PLASMA EQUATION 637
17-1 Moments of the Boltzmann Equation 638
17-2 The Maxwellian Distribution Function 640
17-3 Hydrodynamic Equations of a Plasma 641
17-3-1 Case of a Two-fluid Plasma 641
17-3-2 Case of a One-fluid Plasma 643
17-3-3 Energetic Balance of a Moving Plasma 649
17-3-4 Calculation of the Generalized Ohm's Law 651
17-3-5 Motion of Magnetic Field Lines 654
17-4 Link with the Maxwell's Equations 655
17-5 Analysis of Plasma Rotations in Pinches 656
CONTENTS xvii
17-6 Plasma Confinement and the Bennett Condition 660
17-6-1 Virial Theorem 660
17-6-2 Self-confinement of a Plasma 661
17-6-3 Bennett Conditions for the 9-Pinch and Z-Pinch 663
18 CONCLUSION 667
19 APPENDIX 671
19-1 Elementary Relations of Fluid Mechanics 671
19-1-1 Application to the Case of an Inhomogeneous Wave 673
19-1-2 Calculations of Length, Surface and Volume Variations 674
19-2 Particular Derivative of an Integral 676
19-2-1 Kinematics of a Line Integral 676
19-2-2 Kinematics of a Surface Integral 677
19-2-3 Kinematics of a Volume Integral 678
19-3 Cauchy Method of Integration 682
19-4 Fourier Transforms 684
19-4-1 Definitions of Fourier Transforms 684
19-4-2 Definition of the Dirac Distributions 684
19-4-3 Definition of the Heaviside Distributions 685
19-4-4 Definitions of Convolution Laws 686
19-5 Review of Operations with Complex Quantities 688
19-6 Analysis of a Definite Positive Quadratic From 690
19-7 Analysis of the Continuity Equation 693
19-7-1 Case of a Fixed Volume with Flux 693
19-7-2 Case of a Moving Volume without Flux 693
19-7-3 Case a Moving Volume with Flux 694
19-7-4 Conservation of Charge 694
19-8 Eulerian Formulation of the Energy Density Conservation Law . . . . 695
19-9 Macroscopic Models of Matter 696
19-9-1 Relative Quantities 697
19-9-2 Absolute Quantities 699
19-9-3 Definition of the Magnetic Dipole Moment 702
19-10 Calculation of an Integral Related to the Wave Equation 708
19-11 Calculation of the Green Function with the Fourier Method 709
xviii ADVANCED ELECTROMAGNETISM AND VACUUM PHYSICS
19111 Absolute Green Function 709
19-11-2 Relative Green Function 711
19-12 Definition of the Solid Angle 712
19-12-1 Definition of the Scalar Solid Angle 712
19-12-2 Definition of the Vectorial Solid Angle 713
19-12-3 Definition of the Dyadic Solid Angle 713
19-13 Elementary Properties of Bessel Functions 714
19-14 Elementary Properties of Dirac Distribution 715
19-15 Vectorial and Tensorial Relations 716
20 BIBLIOGRAPHY 723
INDEX 759
Advanced Electromagnetism and Vacuum Physics.part01
共15部分

ص



[ 本帖最后由 drjiachen 于 2008-11-22 11:05 编辑 ]
Advanced Electromagnetism and Vacuum Physics.part03
共15部分
Advanced Electromagnetism and Vacuum Physics.part02
共15部分
Advanced Electromagnetism and Vacuum Physics.part06
共15部分
Advanced Electromagnetism and Vacuum Physics.part05
共15部分
Advanced Electromagnetism and Vacuum Physics.part09
共15部分
Advanced Electromagnetism and Vacuum Physics.part07
共15部分
Advanced Electromagnetism and Vacuum Physics.part04
共15部分
Advanced Electromagnetism and Vacuum Physics.part8
共15部分
Advanced Electromagnetism and Vacuum Physics.part12
共15部分
Advanced Electromagnetism and Vacuum Physics.part10
共15部分
Advanced Electromagnetism and Vacuum Physics.part11
共15部分
Advanced Electromagnetism and Vacuum Physics.part13
共15部分
Advanced Electromagnetism and Vacuum Physics.part14
共15部分
Advanced Electromagnetism and Vacuum Physics.part15
共15部分
谢谢啦
呵呵,下来学习一下:27bb :30bb
:4de:4de:4de:4de:4de:4de:4de:4de:4de
thank you for your sharing:11bb
先进的真空物理学,先进的真空物理学,好书好书
楼主爆发了,发这么书,为什么每本书都要回复!没词了。
:15de     感觉好像很深的书
真空物理和电磁场结合的书很少见,在这里支持一下楼主!!:30bb :31bb
多谢楼主
:11bb :11bb :11bb :11bb :11bb
:11bb :11bb :11bb
:11bb :11bb :11bb
:11bb :11bb :11bb :11bb :11bb :11bb :17de :17de :17de :17de :17de :17de
呵呵,下来学习一下,谢谢楼主
:11bb
好东西自然受到欢迎 :27bb :27bb :27bb
:27bb :27bb :27bb :27bb
:10de :10de :10de
222222222222222222222222
真空物理的书一定要下载下来学习学习
好资料,先奖励,再下载
:27bb 3# drjiachen
:cacakiki2de:13de
支持楼主 谢谢
支持楼主 谢谢  
谢谢慷慨的楼主
你要查看本帖隐藏内容请回复
这方面的资料难得,收下了,谢谢
我 太感激楼主共享了这么的书籍
好书,谢谢分享!
谢谢啦!:53bb
这书看着很高级,收藏了再说
学习
顶贴
谢谢楼主,看下前沿知识
好书,谢谢楼主分享
谢谢分享
uioyuyfgfdtsdtdfghvhgdgfs
I like it
thanks for sharing
Thank you so much
客服中心 搜索
关于我们
关于我们
关注我们
联系我们
帮助中心
资讯中心
企业生态
社区论坛
服务支持
资源下载
售后服务
推广服务
关注我们
官方微博
官方空间
官方微信
返回顶部