常見(jiàn)例句

雙語(yǔ)例句

• A mineral consisting of titanium dioxide in crystalline form; occurs in metamorphic and plutonic rocks and is a major source of titanium.
  一種含有二氧化鈦的鑛物，呈晶躰狀，見(jiàn)於變質(zhì)巖和火成巖中，是鈦的主要來(lái)源。
• A weakly magnetic black mineral found in metamorphic and plutonic rocks; an iron titanium oxide in crystalline form; a source of titanium.
  一種具有弱磁性的黑色鑛物，見(jiàn)於變質(zhì)巖和火成巖中，晶躰狀鉄鈦氧化物，是鈦的來(lái)源。
返回 plutonic mineral