corundum

常見例句

雙語例句

• Rubies, valued as precious gems, are the mineral corundum in its red form.
  作爲一種珍貴的寶石，紅寶石是一種紅色的鑛物剛玉。
• Moreover, corundum and periclase have not been detected in space dust before.
  而且，此前在太空塵埃中還未偵測到剛玉和方鎂石。
• Ruby, the common name for the mineral corundum in its red form, is a precious gemstone.
  紅寶石是對紅色鑛物剛玉的俗稱，它是一種珍貴的寶石。
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