变压器的额定电流是指变压器绕组线端的(       )。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68475' and id < 4421137 and id<>'4421137' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68475' and id > 4421137 and id<>'4421137' order by id asc limit 5