对于三相变压器，额定电压与额定电流是指（）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='32685' and id < 2599751 and id<>'2599751' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32685' and id > 2599751 and id<>'2599751' order by id asc limit 5