地下金属管线探测时的动生电动势

A theoretical analysis of electromotive force by motion for detecting underground metal pipeline

指出了《物理学原理在工程技术中的应用》( 马文蔚编) 一书中的一个值得商榷的问题,对地下金属管线探测原理进行了分析。

An error in a paper is corrected, the condition of formula (1) is deduced by analyzing electromotive force by motion and induced electromotive force theoretically.\;