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laser guide of vertical shaft
释义
laser guide of vertical shaft
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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commitment to clearance
committed cell
committed dose equivalent
committed effective dose
committed equivalent dose
committed information rate
committed information rate, CIR
Committee for Compilation of Party History and Historical Material of the Central Committee of the Chinese Kuomintang
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committee for space research
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Committee on National Nature Reserve Assessment
Committee on Resources of Government of Republic of China
Committee on Space Research
Committee on Water History of Chinese Hydraulic Engineering Society
commit unit
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