同时还指出平行线路条数变化，零序阻抗均需重新测试。
In the meanwhile it is pointed out that the quantity change of the parallel line and zero-sequence impedance must be retested.
同时还指出平行线路条数变化，零序阻抗均需重新测试。
In the meanwhile it is pointed out that the quantity change of the parallel line and zero-sequence impedance must be retested.
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