planoconvex lenses造句

例句与造句

1. By the method of matrix optics , the waist width and imaging distance of gaussian beams through the coupling system are calculated . by the result of the calculation , a set of double planoconvex lens coupling system are designed and manufactured . the coupling efficiency is up to 92 %
   利用矩阵光学的方法，计算了高斯光束经耦合系统聚焦后的像距和束腰宽度，以此为指导设计加工了一套双平凸镜耦合系统，耦合效率达92 ；在以上基础上研究了泵浦光与振荡光在激光晶体中的匹配，计算出了泵浦光经耦合系统后的最佳焦点位置。
2. It's difficult to find planoconvex lenses in a sentence. 用planoconvex lenses造句挺难的