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单词
underchain haulage
释义
underchain haulage
underchain haulage
[
¦ən·dər¦chān ′hȯl·ij
]
(mining engineering)
Haulage in which the chains are placed beneath the mine car at certain intervals with suitable hooks that thrust against the car axle.
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更新时间:2025/11/29 9:49:21