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天津市地震测绘大队制成了一种激光地壳垂直形变仪,可监视地壳两点在垂直方向上的相对位移,为预报地震提供地壳垂直应变方面的基础资料.
Tianjin Seismic Mapping Brigade has made a laser crust vertical deformable instrument that can monitor the relative displacement of two points in the vertical direction of the crust and provide basic information for the vertical crustal strain prediction.