短语
打开泄压阀
Pressure bleed Valve
排泄开关
petcock
;
drain cock
开式泄水管
open ended drain pipe
开始泄漏
Start The Leak
开始泄露
Start the Leak
接点断开漏泄电流
open contact leakage current
急开吹泄阀
quick-opening blow valve
泄放开关
blow-out switch
开路输出泄漏电流
open collector output leak current