safety flap

 
       
  • 安全瓣,安全节气门

safety flap的用法和样例:

例句

  1. For added safety there is a built-in thermal fuse and a flow restrictor which prevents an uncontrolled drop in pressure in the event that one of the supply lines becomes damaged.
    为增加安全性,建有热保险和流体节气门,防止某供应线路损坏时压力自由的下降。
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