passive solid region是什么意思

用法例句

This article reviewed the progress of solid state sources catch up with florescent lamps.

综述近三年来固态光源追赶荧光灯的进展。

This paper summerizes the methods for improving the linearity of the electric-tuning charactferstic of solid-state millimetre-wave sources.

本文叙述在毫米波固态源的设计中，如何改善电调特性的问题。