因此必须利用导线换位，并且采用适当的相序排列方式以及换位方向来减小线路的不平衡度。
Therefore, to minimize line imbalance, conductor transposition, as well as proper phase sequence and transposition orientation have to be used.
为降低长输电线路的电流不平衡度，需要进行导线换位。
Conductor transposition is necessary to reduce unbalanced current in long transmission lines.
不平衡度是衡量输电线路性能优劣的一个重要指标。
The unbalanced degree is one of the most important indexes to evaluate the performance of the transmission lines.
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