1. A strong, large-diameter, heavy steel or fiber rope. 
   缆绳，绳索高强度的、直径大的、高强钢质或纤维质的绳子
2. a metal pipe of large diameter used to connect a stove to a flue. 
   一个直径很大的金属管，它把炉子和烟囱连结起来。
3. large timber tree of western North America with trunk diameter to 12 feet and height to 200 feet. 
   北美西部大型木材，主干直径达12英尺，高度达200英尺。
4. The diameter of a large projectile, such as an artillery shell, measured in millimeters or in inches. 
   弹径大炮弹的直径，如炮弹壳，以毫米或英寸计
5. consists of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length. 
   由许多小镜头排列以制成大直径短焦距的轻型镜头。

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• 1. 大直径的
  {n.}大偏差 large diameter...大直径的 large diameter evaporation pan...大口径蒸发皿 large diameter pipe
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• 2. 大径
  -- 回复：求教专业人士（有关钢结构）...大径: large diameter...翻译中国　关闭窗口
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