elliptical face thru-conduit 在句中的含义? from “handbook of oil industry terms and phrases”, 网上有。 valve, through-conduit a class of gate valve whose valve body is made so that the gate or tongue of the valve and its seating element ex ... 接着鹿鼎记的思路, http:///search?hl=zh-cn&source=hp&q=through-conduit+valves&btng=google+%e6%90%9c%e7%b4%a2&aq=f&oq = 这里不少关于through-conduit的资料,当然最直接的莫过于看图片了,我个人理解“一关到死”的这种闸阀。查看更多