常见例句Petroleum gas can be used as fuel as well as a chemical material.石油气既可以用作燃料又可以用作化工原料。The phenomenon of vapor explosions threatens the safe storage and transportation of liquefied petroleum gas.液化石油气蒸汽爆炸是对其安全储运构成很大威胁的一种观象。 返回 oil-gas