Yahoo奇摩字典 網頁搜尋

搜尋結果

1. Oxford Dictionary

   flap valve

   • n.
     a valve opened and closed by a plate hinged at one side.

   • noun: flap valve, plural noun: flap valves

2. • 更多解釋

   flap valve

   • IPA[flap valv]

   • n.
     a valve opened and closed by a plate hinged at one side.

   Oxford American Dictionary