Mining. A division or layer of a coal seam; (esp. in opencast mining) a ledge or terrace cut into the ground and used as a platform for…
| 单词 | θ99388 |
| 释义 | the world > space > shape > flatness or levelness > [noun] > raised level object or part (1) bench1610 Mining. A division or layer of a coal seam; (esp. in opencast mining) a ledge or terrace cut into the ground and used as a platform for… |
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