medium ring

 
  • 中环

medium ring的用法和样例:

例句

  1. The telescope also spied brightened spots on the middle ring's inner region, caused by an expanding wave of material from the explosion slamming into it.
    哈勃空间望远镜在中环区域内也探测到许多发光点,其原因是爆炸产生的强大的冲击波撞击环内的物质。
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