例句與造句

1. The beam orbit offset effects caused by the initial beam offset and linac componets " offsets in beam transferring process
   良好的束流軌道可以獲得低發(fā)射度、低能散的高品質束流。
2. The propagation of ultrashort laser pulse in air is analyzed with mechanics analogy by considering kerr effects and free electron defocusing . the equation describing the evolution of the laser spot is derived . it is shown that long distance focusing requires large initial beam and the propagation distance is very sensitive to the initial divergence angle of the laser beam
   考慮多光子電離效應和光學kerr效應，首次利用力學類比的方法研究了超短脈沖激光在電離氣體中的傳輸，詳細分析了傳輸距離與激光初始光斑、初始發(fā)散角以及激光功率的關系，提出了實現(xiàn)長距離傳輸?shù)臈l件。
3. We discuss the effect on the focusing of the probe beams for the five initial parameters : the amplitude of the pump beam , the separation between the pump and the probe beam centers , the wavelength ratio of the pump and the probe beams and the ratio of the initial beam widths at the directions of x and y . our numerical results show that , more the amplitude of the pump beam , the wavelength ratio of the pump and the probe beams and the ratio of the initial beam widths at the direction of y , more the probe focus ; the separation between the pump and the probe beam centers and the ratio of the initial beam widths at the direction of x have optimum values , respectively
   研究了泵浦光束輸入振幅、泵浦光束-信號光束初始偏移、泵浦光束-信號光束波長比和泵浦光束-信號光束x 、 y方向的初始束寬比五個參量對信號光束聚焦程度的影響。數(shù)值模擬結果表明，泵浦光束輸入振幅越大、泵浦光束-信號光束波長比越大、 y方向束寬比越大，信號光束聚焦程度越大；泵浦光束-信號光束初始偏移和x方向初始束寬比都存在一個最佳值，使得光束聚焦達到最佳效果，有趣的是這兩個最佳值的比值基本保持不變約為0 . 4 0 . 6 。
4. Secondly , the beam orbit offset effects caused by the initial beam offset and the linac components " offsets have been quantitatively studied first . as an example with the injector linac for beijing electron positron collider upgrading project ( bepcii ) , the beam orbit offset caused by the above error effects have been simulated and analyzed
   其次定量研究束流的初始徑向誤差和加速器部件的安裝誤差等對束流軌道偏軸的影響，并以北京正負電子對撞機二期工程( bepc )的直線加速器為例，給出了上述各種誤差導致軌道偏軸的模擬計算結果及其分析。
5. It's difficult to find initial beam in a sentence. 用initial beam造句挺難的