... geological observation point 地质点 deformation observation point 变形观测点 fixed point observation 定点观测 ...
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fix-point deformation observation 定点形变观测
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Itturns out that the accuracy increase is quite limited by using gravity observation to analyse vertical deformation, if the aim is only to determine point vertical displacement and its velocity.
结果表明，若仅是为了测定点的垂直位移的高程速率，增加重力测量数据后对形变分析的精度增益十分有限。
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