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ＤＴＹ型地电探测仪后来发展改型为ＳＹＴ型物性探测仪。现以河北磁县新兴煤矿探测小构造为例，对该种物探方法从仪器制造的机理方面对其探测精度加以论述。
DTY-type geoelectric detector later developed into a SYT-type physical detector. Taking the small detection structure of Xinxing Coal Mine in Cixian County, Hebei Province as an example, this method of geophysical exploration is discussed from the mechanism of its manufacture.