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二倍照准部互差
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二倍照准部互差
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大地测量仪器
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discrepancy between twice collimation error
二倍照准部互差
用经纬仪或全站仪进行水平角测量时,同一目标的盘左读数与盘右读数的差值与180°之差称二倍照准部差。又称二倍照准差。
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natural coordinates
natural coordinates system
natural correspondence
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natural crossing
natural damping
natural decline of yield
natural deduction
natural deduction system
natural degradable biopolymers
natural density
natural derivation
natural destroying traces
natural direction
natural disaster
natural disaster and foreign object intrusion monitoring system for high-speed railway
natural disaster emergency management
natural disaster in civil engineering
natural disaster map
natural disaster mechanics
natural disaster regionalization map
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natural disaster risk map
natural disasters in China
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