The optical reflection points or the optical line refractionpoints, or the laser breakdown points are produced by a laser engraving machine based on selected pictures.
光线反射点、或者光线折 射点、或者激光破坏点由激光雕刻机根据选定的图像产生。
2
The transparent platy member and the inserting piece are arranged with a plurality of optical line reflection points, or optical line refractionpoints, or laser breakdown points.
透明板状构件和插片中设置有复数个光线反射点、或者光线折射点、或者激光破坏点。
3
In combination with the result, the author points out that radio wave attenuations in roadway is mainly by wave refraction and reflection rather than wall absorption.