홈 > Term: chain machine
chain machine
Coal-cutting machine that cuts coal with a series of steel bits set in an endless chain moved continuously in one direction either by an electric or a compressed-air motor. These machines may be divided into four classes, known as breast machines, shortwall machines, longwall machines, and overcutting machines.
- 품사: noun
- 분야/도메인: 광업
- 카테고리: 일반 광산; Mineral mining
- Government Agency: USBM
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- ed.young
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(Milwaukee, United States)