PMU装置直流电源允许偏差范围为（ ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29468' and id < 2398918 and id<>'2398918' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29468' and id > 2398918 and id<>'2398918' order by id asc limit 5