In short, the water ring vacuum pump in the gas compression is isothermal, and it can be pumped in addition to flammable and explosive gases.是什么意思_In short, the water ring vacuum pump in the gas compression is isothermal, and it can be pumped in addition to flammable and explosive gases.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句