输电线路采用π等值电路，而不采用T型等值电路的目的原因是(    )。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69458' and id < 4498232 and id<>'4498232' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69458' and id > 4498232 and id<>'4498232' order by id asc limit 5