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立井激光指向法
释义
立井激光指向法
Encyclopedia
工学
建井测量
释
laser guide of vertical shaft
立井激光指向法
在立井掘进砌壁的过程中,应用激光投点仪代替中心垂球,来标定立井井筒中心点即立井垂直凿进方向的方法。又称立井激光指向。
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cutting propagation
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cuttings physical section
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cutting tools
cutting tool with indexable inserts
cutting zone of open pit
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cuttle fish
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cut-tree
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