常見(jiàn)例句雙語(yǔ)例句Open vent needle valve fully until dripping from vent connection stops.完全開(kāi)啟排氣針形閥直到從排氣連接處的滴漏停止為止。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.開(kāi)啟針形閥“B”和排氣或旁路針形閥，排放到大氣中，然后關(guān)閉針形閥“B”，將系統(tǒng)恢復(fù)到正常的靜止?fàn)顟B(tài)。Open vent needle valve and bleed air from hose. Then close vent valve.開(kāi)啟排氣針形閥，并從軟管排放空氣。然后關(guān)閉排氣閥。 返回 needle valve