基于激光扫描检测原理，提出了一种用于测量较大直径的双光束激光扫描尺寸测量系统。
Based on the laser-scanned inspecting principle, a double beams laser-scanned measuring system for size is presented, which is used to measure a diameter.
采用了双光束干涉的迈克尔逊干涉仪系统的傅里叶变换红外光谱仪，在动镜运动过程中，动镜可能在三个方向发生倾斜。
The Michelson interferometer system which has two-beam interference is applied in Fourier Transform interferometer, the moving mirror could tilt in three directions in motion.
最后论证用双光束激光直写系统制作亚微米光栅型导光板的可行性。
At last, the feasibility of fabricating light guide plate by double beam laser direct writing system is confirmed.
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