gas cylinder短语¹³¹⁶²⁰⁺³ 基本例句 毒气筒,集气筒,高压气筒 The low-pressure liquefied gas cylinder such as liquefied petroleum gas cylinder, liquefied ammonia cylinder and liquefied chlorine cylinder are widely used in factories and daily life. 液化石油气， 液氯， 液氨气瓶等是人们在工厂或日常生活中最常见的低压液化气钢瓶。 chemyq