filter cone

 
       
  • 锥形滤器,滤锥

filter cone的用法和样例:

例句

  1. Only objects within the cone are illuminated.
    只有锥以内的物体才会被照亮。
  2. In the third chapter, precession cone semi-angle is discussed.
    第三章主要讨论进动锥角的问题。
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