plutonic mineral

常見例句

雙語例句

• 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，見於變質(zhì)巖和火成巖中，是鈦的主要來源。
• 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，見於變質(zhì)巖和火成巖中，晶躰狀鉄鈦氧化物，是鈦的來源。
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