flush-bottom tank valve是什么意思

中文翻译罐底排污阀

网络释义

1)flush-bottom tank valve,罐底排污阀2)bottom blow-down valve,底部排污阀3)sewage unit,排污罐4)blowdown valve,排污阀门5)upper scum valve,上排污阀6)Waste Valves,排污箱(阀)