switch the feed

Comparing the separate explosion and the electrical feed back of switch to the air type with the separate explosion and the electrical feed back of vacuum switch with the intelligent type;

对空气型隔爆馈电开关和智能型隔爆真空馈电开关进行了对比；

The paper discusses several problems which are commonly encountered while applying uninterruptable power, such as: parallel power feed, leakage, switch-on or generator switch-on, parallel connection of UPS and redundancy.

对不间断电源使用过程中经常遇到的几个问题，如双路供电、漏电、开关及发电机接入、UPS的并联及冗余等问题进行了简单的探讨。

Feed not sent to baffle at the location, just step on switch otherwise.

送纸没有送到挡板处定位, 就踩开关打钉.

The New Research of Intelligent Protector of Mine Flameproof Feed Switch

新型矿用隔爆馈电开关智能保护器的研究

Alarm, feed valve or pump starter switch actuates just before the burner switch cuts the firing.

警报器, 进水阀或泵启动装置开关在燃烧器关闭燃烧之前启动.