常見例句雙語例句Mainly by the pilot valve seat, valve, diaphragm, spring, adjusting springs and other parts.導閥主要由閥座、閥瓣、膜片、彈簧、調(diào)節(jié)彈簧等零件組成。Blow out lines to remove all loose scale and other foreign matter that can damage valve seat.向管道吹氣，清除所有疏松鱗銹和可能損害閥門閥座的其他外部雜質(zhì)。Medium pressure increases toward the valve seat surface and oblique cone sealing surface squeeze is tightening, sealing the better.正向介質(zhì)壓力增大時閥板斜圓錐表面與閥座密封面擠壓越緊，密封效果越好。 返回 valve seat