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溜井掘进
释义
溜井掘进
Encyclopedia
工学
井巷掘进与支护
释
pass driving
溜井掘进
采用凿岩爆破或机械破岩的方法,形成溜井(或天井)所进行的掘进作业。
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circle of least confusion
circle of longitude
circle of meromorphy
circle of perpetual apparition
circle of perpetual occultation
circle of position
circle of qi in qigong exercise
circle of reference
circle of right ascension
circle of similarity
circle order
circle orthotomic
circle packing
circle pedal curve
circle point at infinity
circle-point midpoint theorem
circle point picking
circle polynomial
circle power
circle problem
circle property
circle quadrangle
circle quadrature
circle radial curve
circle reading
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