... 子午线收敛角 meridian convergence 子午线测量 meridian determination 子午距 meridian distance ...
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Determination meridian 子午线测定
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The gyro-theodolite , which is composed of a suspended two-degree-of-freedom gyrocompass and a theodolite, is the main instrument in the engineering measurement for meridian determination.
由悬挂式二自由度陀螺罗盘仪和经纬仪组合而成的陀螺经纬仪,是工程测量领域中用以确定子午线方位的主要仪器。
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