The depth of upper mantle high-conductive layer in Chinese mainland is presented and a cause of its formation is given.
地热异常、地壳内存在低速层和高导层、强烈地震频繁发生等现象说明，这一地区是现代构造运动的活动区。
That is one of the possible reasons why there is no "high-conductive layer of the upper mantle" in the MT profile from Yingxian to Shanghe, which images the asthenosphere electrical characters.
这也许正是根据现今应县—商河剖面上大地电磁的探测结果看不出来存在通常所说的反映“软流圈”电性特征的“上地幔高导层”的原因。
Compared with other conductive metal layer, copper coating with small with stress, high mechanical strength, the plastics substrate and coating binding force is good wait for a characteristic.
与其它导电金属层相比，镀铜层具有应力小、机械强度高、塑料基体与镀层结合力好等特点。
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