Space-time variation of gravity in Xi'an since 1992 is summarized.

概述了1992年以来西安地区的重力场时空变化特征。

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The Variation of gravity field in this area may be caused by the crustal deformation or deep transference and fault creep.

重力变化可能是由该区地壳形变、地壳深部质量迁移和断层蠕动共同作用引起的。

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The variation of gravity induced by relief features includes 3 aspects. So the results of gravimetric measurement should BE corrected.

由地形起伏因素造成的重力变化包括三个方面，所以重力测量的结果需要进行三种校正。

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The complement of special moves is also spectacular, with a level of variation that makes almost any gravity-defying trick possible.

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