emptying devices meaning in English

放空设备

Tank wagons , filling and emptying devices for mineral oil tank wagons
油罐车.矿物油罐车的注油和放油装置
Railway applications - tank wagons - bottom filling and emptying devices for gases liquefied under pressure
铁路设施.油罐车.压力下液化气用底部装卸装置
Railway applications - tank wagons - bottom emptying devices for liquid products including vapour return
铁路设施.油罐车.包括回流蒸气的液体产品用底部卸料装置
Railway applications - tank wagons - part 3 : bottom filling and emptying devices for gases liquefied under pressure
铁路设施.油罐车.第3部分:压力下液化气用底部装卸式装置
Railway applications - tank wagons - part 2 : bottom emptying devices for liquid products including vapour return
铁路设施.油罐车.第2部分:带有回流蒸气的液体产品用底卸式装置

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