变压器等值电路中，电纳的物理意义表征的是(  )。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69510' and id < 4503147 and id<>'4503147' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69510' and id > 4503147 and id<>'4503147' order by id asc limit 5