relay for line telecommunication是什么意思

用法例句

This paper study the structures of miniature telecommunication relays, analyse some structures which could improved of the recent telecommunication relays, and give the improvement and its effects analysis, and the influence about the process.

文章简要介绍了超小型通讯继电器结构的研究,分析了现有结构中一些可以改进的地方,并给出了改进方案和效果分析,及对加工工艺的影响。