To measure the dwell time between sending and the reflection of a micro wave by the surface of the medium.

测量发射到介质表面微波反射回来的滞留时间。

youdao

To measure the dwell time between sending and the reflection of a micro wave by the surface of the medium.

测量发射到介质表面微波反射回来的滞留时间。

youdao