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1·Solving the Greens functions of electromagnetic potential equations in moving medium, the retarded potentials in unlimited space are obtained.

求解了运动媒质中电磁势方程的格林函数，给出了无界空间的推迟势。

2·The beforehand people according to the inertia are equal obtains the conclusions of the existence of retarded potential was related with the choice of inertia system generally.

以前人们一般根据惯性系等价而得出“推迟势的存在与惯性系的选择有关”的结论。