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单词
longwall coal cutter
释义
longwall coal cutter
longwall coal cutter
[
′lȯŋ‚wȯl ′kōl ‚kəd·ər
]
(mining engineering)
Compact machine driven by electricity or compressed air which cuts into the coal on relatively long faces, with its jib at right angles to its body.
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更新时间:2026/4/17 8:32:14