首页 > Term: high-rank coals
high-rank coals
Coals containing less than 4% of moisture in the air-dried coal or more than 84% of carbon (dry ash-free coal). All other coals are considered as low-rank coals.
- 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
- 100% positive feedback
(Milwaukee, United States)