tank-truck for liquefied petroleum gas
tank-truck circuit-breaker 箱形断路器; 槽形断路器 tank-truck for liquefied petroleum gas 液化石油气汽车槽车 tank-truck for liquid ammonia 液氨汽车槽车 ..
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论述处置液化石油气汽车槽车事故使用氮气置换的必要性及氮气置换装置的组成、工作原理；
The paper expounds the necessity to use the nitrogen replaceable equipment in handling the problems with liquid-oil-gas-carrying tank cars by using nitrogen replaceable equipment;
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