technical characteristic的用法和样例：
例句
- I examined three key technical properties of this proposed concave-mirror projector.
我检验了凹面镜投射的三项关键技术特性。 - There are several factors need to be discussed in the adoptation of dizao-film.This paper deals with a consolidated explaoation for the technical characteristics of diazo-film.
选用重氮片应考虑因素，以往甚少被重视，本文将所有应考应因素列出，是对重氮片的技术特性作一综合说明。
