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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
gehrig
gehrig henry louis
gehrig, henry louis
gehrig, lou
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gehry frank
gehry, frank o.
gehry, frank (owen)
gehry, frank owen
gehs
gehsms
gehwa
ge hydro
gei
geia
geiap
geib
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geibel, emanuel von
geic
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geic acid
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更新时间:2025/12/13 1:46:35