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porphyry copper
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porphyry copper
Encyclopedia
理学
[有色金属矿床]
释
porphyry copper
斑岩铜矿
在成因、空间、时间上与具有斑状结构的中酸性浅成-超浅成侵入体有关,且品位低、规模大,具面型蚀变细脉浸染型的铜矿床。
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four acts and one prologue
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Fourah Bay College
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four attacking skills
four axioms of quantum mechanics
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Four Banks of South-China
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