inverted crown

 
  • 路拱

inverted crown的用法和樣例:

例句

  1. Their roads were also slightly curved in a crown or camber so that the water would run off.
    他們設計的公路還有輕微的路拱或彎拱曲線(xiàn),便于路面排水。

inverted crown的相關(guān)資料:

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