normal open valve
英 [ˈnɔːml ˈəʊpən vælv]
美 [ˈnɔːrml ˈoʊpən vælv]
网络 常开阀
双语例句
- Stainless steel hopper with a 3-position safety turret valve for normal open position, closed position and discharge through a slanted pipe in front of the turret valve.
不锈钢料斗带有3个位置的下料孔可供正常开启，另外可轻易地从下料孔前倾斜的管道快速卸料。 - HART institutions: automatic control under normal circumstances you can not manually open and close the valve.
手操机构：自动控制在不正常情况下可以手动操作阀门的启闭。