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thermal gradient
In the Earth, the rate at which temperature increases with depth below the surface. In a mine, this is usually estimated at 5.3 degrees F/1,000 ft (1 degrees C/100 m) of shaft depth. Some variability with time of day is typically observed.
- 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)