将接地长导线源沿导线方向分解成多个电偶极子源，对若干电偶极子源产生的响应进行叠加得到接地长导线源的Hz响应。计算结果表明接地长导线源的Hz响应与电阻率之间的关系也为单值关系。-Decompose the grounded long wire source along the wire direction with several electric dipole, and overlay the response which produced by the electric dipole as t