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单词
stull piece
释义
stull piece
stull piece
[
′stəl ‚pēs
]
(mining engineering)
A piece of timber placed slanting over the back of a level to prevent rock falling into the level from the stopes above.
Timbers bracing the platform of a stull.
随便看
aedcc
aedcp
aedd
aed (disambiguation)
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aedeagus
aedean
aededl
aedem
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a&e department
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aedesatlanticus
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aedesdorsalis
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aedes mitchellae
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更新时间:2025/2/1 4:47:27