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shaft drilling
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shaft drilling
Encyclopedia
工学
竖井施工方案
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shaft drilling
竖井凿岩
竖井施工中,在井筒围岩上钻凿炮孔的作业。是竖井掘进中的一项主要工序,约占整个掘进循环时间的20%~30%。
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magnetic number
magnetic obliquity
magnetic-optical disc
magnetic opticity
magnetic order
magnetic ordering
magnetic orientation Mossbauer spectroscopy
magnetic oscillation
magnetic particle
magnetic particle and magnetic inks
magnetic particle non-destructive testing
magnetic particle testing
magnetic particle test instrument
magnetic patch
magnetic path
magnetic pattern
magnetic pen
magnetic period
magnetic permeability
magnetic phase
magnetic phase transition
magnetic pillow
magnetic pinch
magnetic pinning
magnetic plasma
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