所谓内部过电压的倍数就是内部过电压的（）与系统最高运行相电压幅值的比值。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='32608' and id < 2592880 and id<>'2592880' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32608' and id > 2592880 and id<>'2592880' order by id asc limit 5