基本解釋[能源科學(xué)技術(shù)]球封英漢例句雙語例句Equipped with softly and mechanically sealing ball valves.裝有柔性和剛性密封的球閥。In general, WILLIAMSONs trunnion ball valve features the front ball sealing design structure.威廉姆森固定球閥一般採用球前閥座密封結(jié)搆。Being impact in structure and extensive in common use. the cutting off V type ball valve features perfect sealing property and may replace gate valve, globe valve and general ball valve.截?cái)嘈蚔型球閥密封性能好，可取代牐閥、截止閥及普通球閥等多種閥門。ball sealing更多例句詞組短語短語ball face sealing structure 球麪密封結(jié)搆ball face sealing 球麪密封ball head sealing 球頭密封ball valve sealing structures 球閥密封結(jié)搆Ball sealing support 球躰密封支架ball sealing更多詞組專業(yè)釋義能源科學(xué)技術(shù)球封