当压力改变时,阀帽容易上下移动.Bonnet tendency to move up or down as pressure changes.阀帽: 不需要将阀门从管路中拆除,就可以进入维护铰链和阀瓣.Cap: permits access to hinge and disc without removing valve from line.止回阀标签通常安置在阀帽的边缘上.Check valve tags are typically ...
你要是嫌太凉快,你自己找个背风的地方去得了.Go and find a lee somewhere else if it's too fresh.我们的帐篷不规则地散布在小山背风的一面.Our tents were irregularly spaced out on the leeside of the hill....
"Surely there's something we can do?" interjected Palin.“我们一定可以做点儿什么吧？”佩林突然插话道。" What's all this? " the district chief interjected.区长道: “ 干什么?After a moment's break , Mel interjected.在短暂的沉默之后, 梅尔插了进来....