1. any of numerous tropical marine snails that as adults have the outer lip of the aperture produced into a series of long curved spines. 
   多种热带海生蜗牛，成体带孔的外部唇缘产生出一串长而弯曲的刺。
2. fundamental theory of aperture antenna 
   面天线基本理论
3. A breach or an aperture. 
   缺口，孔
4. The aperture of a camera. 
   照相机的光圈
5. What aperture are you using? 
   你使用多大的光圈？

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• 1. 纹孔外口
  outdoor chip storage 室外贮存木片...outer aperture 纹孔外口...outer dead bark 外皮
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