常見例句雙語(yǔ)例句The speed of the valve gate is open or closed to complete a move to indicate the time required.啟閉速度是用閥門完成一次開啟或關(guān)閉動(dòng)作所需的時(shí)間來(lái)表示。Flat bottom direct design prevents sundries from accumulating, which guarantees valve gate sealing performance for long time use.平底直通式設(shè)計(jì)， 閥體避免雜物堆積， 蝶閥保證長(zhǎng)期使用不影響閥門密封性能。The valve gate will cut off medium and be in the sealed state when the butterfly disc moves to the vertical place with pipe axis.當(dāng)?shù)暹\(yùn)行到與管道軸線相垂直時(shí)，閥門即切斷介質(zhì)處于密封狀態(tài)。www.jzvalve.com.cn 返回 valve gate