首页 > Term: main return
main return
The principal return airway of a mine. The main return air current represents the total quantity of air; i.e., after the air splits have reunited.
- 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)