king valve

英 美
  • 主阀
  • king n.国王;(纸牌)老Kadj.王的;重要的;基本的v.成为国王King.n.金(姓氏);上帝;耶稣
  • valve n.瓣膜;真空管;阀门;电子管
    1. He checked the flow of water by shutting off the main valve.
      通过关上主阀他中断了水流。
    2. If the building smells like gas, open windows and doors, turn off the main gas valve, and leave.
      如果在建筑物中闻到了煤气味,请打开门窗,关闭煤气总阀,然后离开。