英语翻译If the pressure is dumped to atmosphere when the valve i

英语翻译If the pressure is dumped to atmosphere when the valve i high pressure is asmitted to the underside of disc valve. 英语翻译the welding gun to be set by the pressure-reducing valve Liquid flows from the pressure line through the valve to the if we are ever going to protect the atmosphere,it is crucial 英语语法问题if we are ever going to protect the atmosphere ,it is 英语翻译1.The atmosphere of the Earth is quite thin compared to 英语翻译The Brake's pressure supply and bleeder valve can be in The pollution were terrible when the factory dumped its wast 英语翻译while joking around is good to lighten the atmosphere,th 英语翻译If the time comes when I am no longer of service to the 英语翻译1.I felt that if the day arrived when I was unable to li