principal wave 中文意思是什麼

principal wave 解釋
主波，基波
  • principal : adj 1 主要的，首要的，最重要的；第一的。2 領頭的；負責人的，首長的。3 資本的，本金的，作為本錢的...
  • wave : n 〈美海軍〉女志願軍人〈見 WAVES 條〉。n 1 波浪；碎浪； 〈the wave（s）〉 〈詩〉海。2 波動；波狀...
  1. The orientation of the principal stresses relative to the directions of the polarizer and first quarter-wave plate is of course immaterial.

    主應力相對于起偏鏡和第一個四分之波片方向的方位，當然是無關緊要的。
  2. The most achievement is that we firstly obtain the analytic accurate solution of the modal fields of the waveguide structure and find some available character : ( 1 ) the different uniaxial crystal materials have the different propagation properties ; ( 2 ) when the optical axis of the crystal is on the plane that is made up of the normal direction of the waveguide plane and the propagation, there are te mode and tm mode in this special waveguide, but the principal mode is different of the character of the uniaxial crystal, the principal mode is the principal mode of te mode for the negative uniaxial crystal, but the one of tm mode for the positive uniaxial crystal ; ( 3 ) when the crystal optical - axis parallel to the waveguide plane, for the positive uniaxial crystal material, the principal mode of the waveguide is a te wave, which can be excited by the light at any frequency ; when the light frequency satisfies a single mode propagation condition, there will be only the principal mode propagating in the waveguide, otherwise some of the higher order modes can be excited, which are neither te modes, nor tm modes, but the hybrid guided modes

    本文就是在此背景下，利用金屬波導和單軸晶體的一些特性，結合麥克斯韋方程組和波導的邊界條件，從三種不同的情況研究了光在對稱平面單軸晶體金屬波導（波導層是單軸晶體，兩個波導界面均為金屬）內的傳輸特性，其主要貢獻為，首次解析地得到了這種波導結構下模式場的精確解，並發現了一些有用的特性： （ 1 ）模式場的性質因單軸晶體的性質不同而異； （ 2 ）當單軸晶體光軸位於波導界面法方向與傳輸方向構成的平面內時，波導中傳輸te波和tm波，只不過其主模因單軸晶體的性質不同而異，當波導層介質為負單軸晶體時，波導主模是te波主模，而波導層介質為正單軸晶體時波導主模是tm波主模。 （ 3 ）當單軸晶體光軸位於波導面內時，對于正單軸晶體，波導的主模是橫電波te _ 0模，任何頻率的光波均可激勵該模式；當光波波長滿足一定條件時，波導內傳輸單模，否則，將激勵起高階模式，高階模即匪te波，也匪tm波，而是兩者耦合而成的混合模。
  3. As a newly developed high - performance ship, wave piercing catamaran ( wpc ) has been applied and investigated more and more extensively. in this paper, the theoretic calculation method of wave resistance of a kind of wave piercing passenger catamaran with 500 passengers has been researched, including the ship lines optimization ; the fast speed experiment research work and the research of the relation between the principal dimensions and the resistance. the relation between the wave piercing catamaran and the ship form parameters has been further researched, and also some useful theoretic basis and practical means have been provided for its practical engineering appliance

    本文以「 500客位穿浪雙體船」為研究對象，對穿浪雙體船興波阻力理論計算和船型優化方法進行了研究，其主要研究內容如下：一、穿浪雙體船的線型優化二、穿浪雙體船快速性理論與試驗研究三、穿浪雙體船主尺度與快速性的關系通過以上內容，較深入的研究了穿浪雙體船船型參數與快速性的關系，為其在實際工程中的應用提供了理論依據和解決方法。
  4. This thesis mainly discusses the devices based on crystal optics and polarization, which includes polarization interference filter ( pif ) used in the separation and combination systems of lcos, achromatic wave plates based on the similar principal of pif and the crystal polarization beam splitter

    本論文將主要討論晶體偏振光學器件：用於lcos分合色的偏振干涉濾光片（ pif ） ，基於pif原理的消色散延遲片和偏振分束器。
  5. Principal conclusions were drawn as the following : the non compatibility of pressure or velocity of the gas on both sides of the contact surface is the cause of the formation of shock wave ; the heating effect of reflective shock wave to driving gas during charging or exhausting process is the internal mechanism of peak oscillating effect, and all the factors that influence the formation and the running of the shock wave will influence the peak oscillating frequency, cooling effect

    主要結論如下：熱分離機內激波形成的原因是射氣瞬間接觸面兩側壓力和速度不相容；峰值振蕩效應的內在機制為反射激波對充氣階段的驅動氣或低溫排氣的加熱，凡是影響激波形成及運動的因素都將對峰值振蕩頻率、冷效應及熱效應產生影響；當充、排氣時間比為0 . 1763時，最佳射流激勵頻率出現在高階峰值振蕩頻率上。
  6. Based on this, a case of typical external self - focusing effect, hot - image, has been analytically and experimentally investigated in this dissertation. the principal work is as follows. ( 1 ) intense laser beam propagation equation, the paraxial wave equation, has been derived

    論文的主要內容為如下幾部分： （ 1 ）從電磁波的基本傳播方程出發，推導了描述強激光在透明克爾介質中傳輸行為的非線性近軸波動方程。
  7. Base on helmholtz integral equation, the incoherent scattering of plane wave from rough cone - shaped surface is derived with the far field theory and stationary phase method. and the incoherent scattering of plane wave from rough conical surface is also derived with shadowing function when the the radius of principal

    最後計算並分析了入射光為= 0 . 48 m時，粗糙錐面的平面波散射特性，考察了入射波和散射波的幾何關系，偏振態以及粗糙面統計參量等對散射強度的影響。
  8. Scattering of the cloud or raindrop for radar wave was always the principal causes of meteorological interference. the author, according to specific property of the spherical or unspherical points, analysed some decline phenomena in propagation for radar - wave, especially the typhoon rainstorm

    雲雨滴對雷達波的散射是產生氣象干擾的主要原因.根據球形、非球形質點的散射特性，分析了雷達波在傳播過程中受其影響所產生的各種衰落現象，特別是臺風暴雨
  9. We discussed the main characteristic parameters of seismic kinesiology and dynamics of mine engineering fracture zone, including relative amplitude, phase time of wave crest, similarity factor, principal frequency band energy, 3 - d space time gradient and coherent coefficient et al., and puts forward the processing method of 3 - d seismic characteristic parameters about denoise - smoothing, generalization, correlation analysis, characteristic transformation ; and presents the method of pattern recognition of mine engineering fracture zone

    摘要本文從時間域、頻率域、三維空間域介紹了礦山工程裂隙破碎帶主要的地震運動學、動力學屬性參數，包括相對振幅、波峰相位時間、相似系數、主頻帶能量、二維空間時間梯度和相干系數等，提出了礦山工程裂隙破碎帶三維地震屬性的去噪平滑、歸一化、相關分析、特徵變換的處理方法以及裂隙破碎帶的模式識別原理與方法，並用實例說明了該方法的應用效果。
  10. Will the principal officials accountability system, soon to be introduced, provide the wave on which antony leung could ride

    諸葛孔明借的是季候風，不知阿松借的，可是即將出臺的高官問責之風？
  11. Since 1994, professor kwok has been serving as the principal investigator for canada s submillimeter - wave satellite odin which was successfully launched in 2001 on a russian start - 1 rocket and was the first satellite in the world to have carried out a spectra scan in the submillimeter - wave region

    自一九九四年起，郭教授擔任加拿大次毫米波人造衛星odin的主持人。這枚由俄國start - 1火箭運載的人造衛星，在二一年成功發射，並且是首枚進行次毫米波段光譜掃瞄的衛星。
  12. Abstract : through transient spectrum analysis, we can obtain such parameters as transient central frequency, transient frequency width and transient principal frequency. these parameters indicate dynamic characteristics of real signals, benefit the study of dynamic characteristics of radar wave, and can prvide multiple parameters for integrated interpretation of the radar profile

    文摘:通過瞬態譜分析，可以求得瞬時中心頻率、瞬時頻寬、瞬時主頻等參數表徵實信號動力學特徵，有利於對雷達波動力學特徵的研究，並可提供多參數對雷達剖面進行綜合解釋。
  13. Chapter 2 introduces the surface acoustic wave propagation property in piezoelectric substrate and the wireless sensing principal of passive saw resonator ; explains the construction, operation principal and flow process chart of the wireless interrogating system

    第二章介紹了壓電體中saw的傳播特性和saw諧振器型傳感器的工作原理，並對無線查詢系統（中國專利， zl0222116022 ）的組成、工作原理、工作流程做了必要的描述。
  14. ( 3 ) the blasting stress wave reflects and transmission rules of blasting stress wave have been found. based on rules and damage principal equation of rock, damage principal equation of bedded composite rock has been built. the conclusions of rock damage produced by blasting stress wave and denotation vapor have been educed

    （ 3 ）推導了爆炸應力波在層狀復合巖體中反射和透射的規律，並根據巖體的損傷本構關系，建立了層狀復合巖體爆破損傷本構關系，得出了巖體損傷是由爆炸應力波及爆生氣體共同作用的結論。
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