corundum
常见例句
- 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。 返回 corundum