artificial gem

 
  • 人造宝石

artificial gem的用法和样例:

例句

  1. A hard, brilliant, lead-containing glass used in making artificial gems.
    铅质玻璃用来制人造宝石的硬而耀眼的含铅玻璃
  2. A small natural or artificial gem used as a bearing in a watch.
    钻石小的天然的或人造宝石,用作手表中的轴承
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