annular scotoma

常见例句

• The annular markings on a tree indicate its age.
  树的环形纹理显示其年龄。
• annular scotoma ring scotoma
  环状暗点
• It was reported that there would be an annular eclipse tomorrow.
  据报道说，明天有日环食。
• And this one scotoma also is a good luck actually.
  而这一盲点其实也是一个机遇。
• HSS-E annular cutter with weldon shank, 25mm D.O.C.
  双削平柄系列超硬高速钢孔钻，切削深度25毫米.
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