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单词
back work
释义
back work
back work
[
′bak ‚wərk
]
(mining engineering)
Any kind of operation in a mine not immediately concerned with production or transport; literally, work behind the face, such as repairs to roads.
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nactc
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nacubo
nacubo (national association of college and university business officers) endowment study
nacuc
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更新时间:2025/3/16 11:50:18