英语词汇“sphene”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	sphene
释义	Word Frequency sphene (sfiːn) noun a brown, yellow, green, or grey lustrous mineral consisting of calcium titanium silicate in monoclinic crystalline form. It occurs in metamorphic and acid igneous rocks and is used as a gemstone. Formula: CaTiSiO5 Also called: titanite Word origin C19: from French sphène, from Greek sphēn a wedge, alluding to its crystals
随便看	downswept downswing Down syndrome down the drain down the hatch downthread downthrow downtick downtime down to down-to-earth down to the ground down to the wire downtown downtowner downtrend downtrod downtrodden downturn downturned down under downvote downward downward downwardly

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