低压保护 meaning in Chinese

low-voltage protection
lv low voltage protection
under voltage protection

Pbg type flameproof high voltage vacuum power distribution set series and bbd type flameproof low voltage protection case series are appropriate to environment with explode gas in underground coal mine
Pbg型矿用隔爆型高压真空配电装置系列和bbd型矿用隔爆型低压保护箱系列，适用于煤矿井下具有爆炸性气体的环境中。
Low - pressure protect is very important for safety and protect mold , mold protect time should adjust within 1 - 3 second suit low pressure and position of mold protect , shorter protect time , make damaged
低压保护时间对保护我们人身安全,模具安全起很大作用,配合好模具低压位置和低压压力的调整,低压保护的时间应取1 - 3秒,保护时间越短,可能造成的危害则越小