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单词
service shaft
释义
service shaft
Encyclopedia
工学
竖井
释
service shaft
措施井
为加快地下矿山建设,增加开拓巷道的掘进工作面数而专门设置的井筒,或为现有井筒延深而专门设置的辅助施工井筒。
工学
竖井
释
service shaft
副井
矿山生产中,主要用于提升人员、材料、设备或废石的竖井或斜井。通常也兼有进风功能并作为安全出口。
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projective system
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projective topology
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projective transfer
projective transformation
projective transformation group
projective unitary group
projective variety
projective vector
projective zero
projectivity
projectivity condition
projectivization
projectized organization
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Project Lesson Learned Report
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