two-dimensional annulus

 
       
  • 二维圆环

two-dimensional annulus的用法和样例:

例句

  1. These two pieces of the chain hook together.
    这两个链环套在一起。
  2. What touch with vaccinal annulus is adhesive.
    用接种环触之有粘性。

two-dimensional annulus的相关资料:

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