return loss造句

1、This paper discusses the return loss in air-space type fixed optical attenuator.
本文讨论了空气隙型光固定衰减器的回波损耗。

2、Several kinds of measurement principles and methods for optical return loss are introduced.
介绍了几种光回波损耗的测量原理和测量方法。

3、For the fault location and structural return loss measurement function.
供了故障定位和结构回波损耗(SRL)测量功能。