local gravity positive anomaly 重力局部正异常
In the genesis stage of an earthquake, regional gravity anomaly appears in a large area, resulting in related local gravity anomaly.
在地震孕育发生阶段，重力场出现较大范围的区域性重力异常，并产生与地震孕育发生有关的局部重力异常区。
Comparison of the Bouguer gravity anomaly map with geological map shows that the local negative gravity anomaly is caused by the Linglong granitic complex.
布格重力异常图与地质图的对比表明，本区的局部重力异常主要是由玲珑花岗质杂岩体引起的。
As the second derivative does, the forth, derivative of gravity anomaly projects local anomaly but suppresses regional anomaly.
重力异常四次导数和重力异常二次导数一样，具有突出局部异常，压制区域异常的作用。
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