propagation direction 中文意思是什麼

propagation direction 解釋
傳播方向
  • propagation : 持續培養
  • direction : n. 1. 方位，方向；范圍，方面。2. 〈pl. 〉 指揮，指導；管理。3. 〈常 pl. 〉指示，命令，吩咐；用法說明。4. 導演；（樂隊）指揮。5. 寄發地址。6. 趨向，傾向。
  1. Wind direction, wind velocity, air temperature and air pressure have a very great effect on the propagation of pressure waves.

    風向、風速、氣溫和氣壓對壓力波的傳播有十分巨大的影響。
  2. On the diagram, propagation is manifested as a coherent line of cloudiness sloping in one direction or another

    在這張圖上，傳播表現為向某一方向傾斜的相互密合的雲帶的形成。
  3. 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。
  4. In chapter 3, we discussed the propagation of the atom laser beam, with the transverse independent of gravitate direction, which had non - conservation quality factor based on the theory of abcd formulation of propagation of a time - dependent quantum system

    第三章：本章在含時量子系統的schrdinger形式理論的基礎上初步討論原子激光? ?這種品質因子不守恆的含時量子系統的傳輸問題。
  5. Model results showed that tidal currents over the shelf from the continental edge to the entrance of the yellow sea rotated in a clockwise direction, while the currents in the yellow sea were rectilinear following and their direction of propagation along the coast

    論文系統分析了東中國海四大分潮的潮汐和潮流特徵，潮流模擬結果表明，東海陸架邊緣到黃海，潮流基本呈順時針方向旋轉。而在黃海，其潮流基本呈往復流特徵。
  6. Distance in the direction of propagation of a periodic wave between two successive points at which the phase is the same ( at the same time )

    在周期波傳播方向上在同一時間連續兩個相位相同的點之間的距離。
  7. When pure shear wave propagate in anisotropy media, even thought propagation direction is parallel to the direction of aligned cracks, experimental results exhibit that only two kinds of shear - wave velocity can be measured - fast shear wave and slow shear wave neglecting polarization direction

    這個實驗結果進一步表明，純橫波在各向異性介質傳播時，即橫波的傳播方向與裂隙平行，無論橫波的偏振怎樣改變，只能觀測到兩種橫波速度，快橫波和慢橫波。
  8. Keeping displacement constant, the length of dfz decreased. the less the lattice resistance is, the longer the dfz is. during the crack propagation, the pile - up dislocations may move forward in the previous direction or in another direction which caused shape of dfz changed. the dislocations emitted from the crack tip might pile up in the dfz and can be served as dislocation source in the successive loading

    在裂紋擴展過程，反塞積位錯群發生變化，可以沿原來方向繼續向前運動，也可能改變運動方向使無位錯區的形狀發生變化，后來發射出的位錯可以在原五位錯區中塞積，並可作為位錯源在後續的加載中發射位錯。
  9. Change in the direction of propagation of radiation determined by change in the velocity of propagation in passing through an optically nonhomogeneous medium, or in passing from one medium to another

    當輻射通過光學異性的界面，或從一種媒質進入另一種媒質時，傳播速度的改變而導致的輻射傳播方向的改變。
  10. Point out guarantee measures of executing agricultural product standardization by the situation of standards of major agricultural products in jilin province, that is, to enhance the formation and direction of standardization, found the agricultural product standardization network and administration system, establish the propagation and popularization channels of the agricultural product standardization, and organize the agricultural industrialization management based on standards, adopt the high - start, high - standard, high - value standardization rules, supervise intensively the enforcement of the agricultural product standards, quicken the construction of the agricultural product quality standard organizations

    本文還結合吉林省主要農產品標準化現狀，給出了吉林省農產品標準化的保證措施。即加強對標準化工作的組織領導；建立農產品標準化工作網路和管理體系：設立農產品標準化的宣傳普及渠道；運用標準化組織農業產業化經營；實行高起點、高標準、高效益的采標原則；加強農產品標準實施的監督；加快農產品質量標準隊伍的建設；建立資金保障體系。
  11. Due to the different values of incident angle, there are two different propagation formats. one case is that the beam is finally trapped in a guide - like channel and propagates stably along the channel when the launching angle is smaller than a critical value. otherwise, it will propagate along the incident direction all along

    由於入射角度的取值不同，格子孤子具有兩種不同的傳輸方式:當光束入射角小於某臨界角度時，光束可被類似波導形式的路徑俘獲，轉而沿該路徑向前傳輸;當光束入射角大於該臨界角時，孤子則不會被俘獲，而是沿著光束的入射方向直線傳輸。
  12. This is possible only if the tool is able to automatically detect conflict situations caused by propagation in any direction

    唯一的實現途徑就是能夠自動地發現在任何傳播過程中的沖突狀態。
  13. When the laser facilities are in operation, the position and direction of all the beams are subject to change due to the optical structural drifts excited by multiple input sources. these changes will influence the precision of the beam propagation and finally the focal spot positions on targets which are strictly dictated by the requirements of plasma physics experiments

    這些激光裝置在運行過程中，光學元件結構在外界激勵因素作用下容易產生漂移，使光束位置和方向發生改變，影響光束打靶定位精度，無法滿足精密物理實驗要求。
  14. The wave propagation along axis direction in piezoelectric hollow cylinder is studied

    對壓電圓柱殼體內波的軸向傳播進行了研究。
  15. Solving wave propagation along axis direction in piezoelectric hollow cylinder by integral average method

    用積分平均方法求解壓電圓柱殼內波的軸向傳播
  16. With the input of a vibration acceleration history of subway train, a full dynamic analysis of soil - pile - structure is carried out. the propagation of vibration wave on the ground and vibration responses of the huge platform and the storied buildings are analyzed. some conclusions are drawn as follows : ( 1 ) with the increase of the distance to the vibration source, vibration intensity of the ground decreases ; ( 2 ) the vibration intensity of the ground in vertical direction is slightly larger than that in horizontal direction ; ( 3 ) with the increase of the distance to the vibration source, the situation that the vibration intensity of each building in horizontal direction is maximum at highest and lowest story whereas minimum at the middle story changes gradually to that decreasing with the height of building ; ( 4 ) in vertical direction, the vibration velocities and accelerations at the end points of each story of a building are the nominal identical, which indicates that the vertical vibration of them is unanimous ; ( 5 ) the vibration intensity in vertical direction of a building is larger than that in horizontal direction ; ( 6 ) increasing of the elasticity of track is an effective way to abate vibration of ground and buildings

    本文以北京地鐵八王墳車輛段地上超大結構（車輛段大平臺及其上的小區樓房）及其地基基礎為研究對象，在研究和分析有關資料的基礎上，用快速拉格朗日有限差分法軟體flac建立了二維數值分析模型，並以列車振動加速度時程作為模型輸入，進行了地基?樁基礎?地上結構的整體動力學分析，分析了地鐵列車運行產生的振動在地面的傳播規律及其對地上結構的影響，得到了如下結論： （ 1 ）隨著與地鐵線路距離的增大，地面的振動強度有減小的趨勢； （ 2 ）地面豎直方向的振動強度較之水平方向的略大； （ 3 ）隨著與振源距離的增大，在水平方向上，地上各幢樓房的振動強度由底層和頂層的最大、中間層的最小逐漸過渡到沿樓層增高而減小； （ 4 ）在豎直方向上，每幢樓各層端點的振動速度、加速度完全相同，表明樓房各層在豎直方向上的運動狀態一致； （ 5 ）各幢樓房豎直方向的振動強度比水平方向的大； （ 6 ）增加軌道彈性是減輕地面和地上建築振動的有效途徑。
  17. As barium titanium is a typical ferroelectrics medium, in which the variation of the polarization intensity with the field strength is nonlinear under the external electric field. the behavior of microwave propagation in batio3 er fluids was also studied when considering the microwave propagation in a direction perpendicular and parallel to the particle chains, respectively. the microwave transmittance in the fluids could be adjusted by the electric field

    考慮到batio _ 3是一種非線性介質，在外電場作用下自身介電行為變化的特殊性，對batio _ 3電流變液微波透射行為進行了研究，分別考慮微波傳播方向與電流變液顆粒鏈相垂直和平行的情況，發現batio _ 3電流變液微波透射率亦可由外電場調控。
  18. They do have very strong electric fields, but the fields are mostly perpendicular to the direction of propagation

    它們的確都具有相當強的電場，不過電場的方向都垂直於運動的方向。
  19. By using bpm, the problem is reduced from a second - order boundary value problem requiring iteration or eigenvalue analysis to a first - order initial - value problem that can be solved by simple " integration " along the propagation direction

    和其他模擬方法相比， bpm將二階邊值問題簡化為一階初值問題，減小了計算的復雜性，縮短了計算時間，降低了對計算機硬體的要求。
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