It indicates that the seismic region controlled by the tectonic stress field is stable.
表明震区始终受到构造应力场的控制，呈现出一定的稳定性。
The method is applied to estimate the seismic occurrence rate in North China region.
该方法被应用到估计华北地区地震发生的概率密度。
The seismic wave did not being affected generally in easy near surface or plains region.
这在简单的近地表结构地区或在平原地区可近似认为对地震波场不产生影响。
The seismic wave did not being affected generally in easy near surface or plains region.
这在简单的近地表结构地区或在平原地区可近似认为对地震波场不产生影响。
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