closed drain meaning in English
排水暗管
阴沟, 暗渠
Examples
- Shipbuilding - fuel oil tank self - closing drain valves
造船.燃油罐自闭式排油阀 - J kind of flanged self - closing drain valves
J类法兰自闭式放泄阀 - Drain approximately 5 gallons of water from the tank . ( refer to “ draining and flushing ” for proper procedures . ) close drain valve
从内胆内排出大约5加仑的水。 （参阅“排水与冲洗” ，了解正确的操作方法。 ）关闭排污阀。