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double-engine plane
Loads are raised or lowered on a slope by a stationary engine and wire rope, as in an inclined shaft. There is a double track, or three rails and turnout; the descending trip assists the engine to raise the ascending trip, thus eliminating dead load, except rope.
- 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)