first loop是什么意思

用法例句

The impact of the sailing of the nuclear powered vessel on its first loop natural circulation;

核动力船机动航行对一回路自然循环驱动力的影响

This article mainly describes the grounding way in medium-voltage system,on the same circuit with multi-cable,how to selet zero-sequence current transformers and analysis to connecting way of their secondary coils,so that we selet the best wiring way.

本文主要阐述中压系统的接地方式;在有多根电缆的同一回路中,如何选择零序电流互感器及分析它们的二次线圈连接方式,以便能选出最优的接线方式。

The activity of inert gas nuclides in sample was experimentally measured,and the primary radioactivity was deduced.

本工作通过对取样罐氦气中惰性气体核素活度的分析,推测HTR010一回路活度,并与程序计算值进行了比较。