needle valve
常见例句
- Open vent needle valve fully until dripping from vent connection stops.
完全开启排气针形阀直到从排气连接处的滴漏停止为止。 - Open needle valve "B" and vent or bypass needle valve, bleeding to atmosphere, then closing needle valve "B" restores the system to a normal static condition.
开启针形阀“B”和排气或旁路针形阀，排放到大气中，然后关闭针形阀“B”，将系统恢复到正常的静止状态。 - Open vent needle valve and bleed air from hose. Then close vent valve.
开启排气针形阀，并从软管排放空气。然后关闭排气阀。 返回 needle valve