off-axis gaussian beams 离轴高斯光束
curvilinear axis electron beams 曲轴电子束
one-dimensional off-axis Gaussian beams 维线阵离轴高斯光束
It is rather complicated to compute the neutral axis in partially pre-stressed concrete beams after cracking, since we have to solve a cubic equation.
计算部分预应力混凝土梁开裂后截面应力时，需求解中和轴高度的三次方程，使计算显得比较复杂。
It is shown that the positions of phase saddles and vortices depend on the off-axis parameter, beam width, phase and relative amplitude of beams.
研究表明干涉场中的相位鞍点以及涡旋点的位置与光束的离轴参数、束腰宽度、相位以及相对振幅有关。
The study on collimation properties of semiconductor laser beams is valuable and the off-axis model can characterize accurately the output beams of semiconductor laser.
对半导体激光器光束准直场的研究具有重要的意义，半导体激光器的远轴模型能精确描述其发出的光束。
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