degassing orifice 中文意思是什麼
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Railway transport equipment. tank wagons for carrying liquified gases under pressure and having bottom filling and emptying devices. maximum service pressure 40 bars. air orifice for gauging, degassing and testing
鐵路運輸設備.底部帶灌注和排放裝置的低壓液化氣罐車.最大壓力40bar .測量排氣和試驗用氣孔
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