Time series of vertical crustal displacements are obtained by defining a datum of a stable group of 7 stations scattered in different regions with relatively small vertical displacements.
选分布于不同区域相对垂直位移较小的7个站为稳定点组，得到垂直位移时间序列。
Time series of vertical crustal displacements are obtained by defining a datum of a stable group of 7 stations scattered in different regions with relatively small vertical displacements.
选分布于不同区域相对垂直位移较小的7个站为稳定点组，得到垂直位移时间序列。
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