projection interferometer

例句：

1. 1. The projective interferometer is used to measure the distance between two points on a surface.
   投影干涉仪用于测量两个点在表面上的距离。
2. 2.The projective interferometer is an essential tool for measuring the accuracy of optical systems.
   投影干涉仪是测量光学系统精度的必备工具。
3. 3. The projective interferometer can be used to detect defects in materials by comparing the interference patterns generated by light passing through different layers of the material.
   投影干涉仪可以通过比较穿过材料不同层产生的干涉图案来检测材料中的缺陷。