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单词
horizon mining
释义
horizon mining
horizon mining
[
hə′rīz·ən ‚mīn·iŋ
]
(mining engineering)
A system of mining suitable for inclined, and perhaps faulted, coal seams; main stone headings are driven, at predetermined levels, from the winding shaft to intersect the seams to be developed.
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更新时间:2025/3/28 10:06:00