传统上异常浓集中心是以异常下限值的1 ~2倍圈出的区域。
Traditionally, anomaly consistence focus is an area, which is marked out by the abnormal limit of 1 ~ 2 times.
消除这些干扰因素的最简单方法是分区统计背景值，或者用不同异常下限或用衬度值圈定异常。
The simplest way to eliminate disturbing factors is part statistics of the background values or delineating the anomalies by using the different anomaly thresholds or contrast values.
区域化探数据处理中，重点是确定地球化学异常下限，异常下限的确定是勘查地球化学的一个基本问题。
During the disposal of regional geochemical data, the key is confirmation of anomalous threshold, which is also a fundamental issue in explorative geochemistry.
地球化学元素的异常下限值确定是地球化学中重要的问题之一，目前还没有一个令人满意的具有科学依据的计算方法。
The determination of thresholds of chemical elements is an important problems in geochemical exploration. At present, there is not a satisfactory scientific way to confirm the thresholds.
子区中位数衬值滤波方法解决了低背景区和高背景区弱小异常的识别问题，克服了采用全区统一异常下限给异常识别带来的困难。
The Subinterval area median contrast filtering method that can recognize weak anomalies of the low-background area and high-background area resolves the problem.
子区中位数衬值滤波方法解决了低背景区和高背景区弱小异常的识别问题，克服了采用全区统一异常下限给异常识别带来的困难。
The Subinterval area median contrast filtering method that can recognize weak anomalies of the low-background area and high-background area resolves the problem.
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