air ring

 
       
  • 環形墊,環形空氣囊

air ring的用法和樣例:

例句

  1. It was the idea of supporting a craft on a pad, or cushion, of low- pressure air, ringed with a curtain of higher pressure air.
    這頂計劃是將船支承在低壓空氣墊或低壓空氣軟墊上,低壓空氣周圍圍著較高氣壓空氣幔。
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