... 水喷真空 用喷射泵能达到的真空nwater jet vacuum 水平摆 horizontal pendulum 水平变换器 horizontal invertor ...
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It can replace traditional horizontal pendulum tiltmeter completely.
它完全可以取代传统的水平摆倾斜仪。
In this paper, formulae of calculating best operating position of horizontal pendulum tiltmeter are derived, choice of precision and parameter are discussed.
本文推导出水平摆倾斜仪摆杆初始平衡位置的计算公式，并对其精度及各参数的选取进行了分析。
Based on the theory of horizontal pendulum, the theoretical function model of magnetic error of self adjusting level is deriveted, and observation equation in geomagnetic field is set up.
利用物理摆原理导出了自动安平水准仪磁致误差的理论函数模型，建立了地磁场中的观测方程。
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