常見(jiàn)例句雙語(yǔ)例句Before exchanging the outlet ball valve you can try to clean it in a sonic bath for five to ten minutes. Place the valve in an upright position in a small beaker with alcohol.在更換出口球閥之前，可超聲清洗五至十分鐘。將球閥垂直放入有乙醇的小燒杯內(nèi)。www.instrument.com.cn 返回 beaker valve