main protection是什么意思

用法例句

The two basic forms of support are commercial support and self -support, and the commercial support accounts for more and becomes the main part, but the self- support is not replaceable.

美军后勤保障基本形成了商业化保障及自主保障两种,其中商业化保障的比重越来越大,成为后勤保障的主要组成部分,但自主保障不可替代,具有重要战略地位。

Normalizing the design method of main protection for large and medium sized generators;

规范大中型发电机主保护设计的方法

Different disposition of main protection for different types of generator;

不同型号的发电机应配置不同的主保护

A comprehensive survey of the main protection scheme for Three Gorges hydraulic power plant generator No.1 at internal faults;

三峡电站1号发电机内部故障主保护配置方案综观