如果在一世界图上把有相同温度异常的地点以等异常（等距平）线画出来，结果就得到一张气温异常图。
If lines, called isabnormal, are drawn on a world, joining places of equal thermal anomaly, an isabnormal map is the result.
如果在一世界图上把有相同温度异常的地点以等异常（等距平）线画出来，结果就得到一张气温异常图。
If lines, called isanomals, are drawn on a world, joining places of equal thermal anomaly, an isanomalous map is the result.
在进行区域物探工作时，为了解决填图、构造分区和矿产预测等问题，常常需要将地球物理场的异常进行分区和分类。
The division and classification of geophysical anomalies are frequently required in regional geophysical prospecting to tackle such problems as mapping, tectonic division and ore-predicting.
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