英语翻译one voltage free normally open sensing contact of rating 48V DC 3amps,wired from fire alarm panel to elevator shafts at ground floor

分类: 作业答案 • 2021-12-18 22:51:49

问题描述：

英语翻译
one voltage free normally open sensing contact of rating 48V DC 3amps,wired from fire alarm panel to elevator shafts at ground floor

答