propagation ratio meaning in Chinese

传播比
传播常数
传播系数

Lasers and laser - related equipment - test methods for laser beam widths , divergence angles and beam propagation ratios - general astigmatic beams
激光和激光相关设备.激光束宽度发散角和束扩散率的试验方法.一般象散束
Lasers and laser - related equipment - test methods for laser beam widths , divergence angle and beam propagation ratios - part 2 : general astigmatic beams
激光和激光相关设备.激光束宽度发散角和束扩散率的试验方法.第2部分:一般像散束
Lasers and laser - related equipment - test methods for laser beam widths , divergence angles and beam propagation ratios - stigmatic and simple astigmatic beams
激光和激光相关设备.激光束宽度发散角和束扩散率的试验方法.无象散和简单象散束
Lasers and laser - related equipment - test methods for laser beam widths , divergence angle and beam propagation ratios - part 1 : stigmatic and simple astigmatic beams
激光和激光相关设备.激光束宽度发散角和束扩散率的试验方法.第1部分:无象散和简单象散束