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drift theory
That theory of the origin of coal that holds that the plant matter constituting coal was washed from its original place of growth and deposited in another locality where coalification then came about.
- 词性: noun
- 行业/领域: 采矿
- 类别 一般矿业; Mineral mining
- Government Agency: USBM
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创建者
- ed.young
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(Milwaukee, United States)