阻抗继电器的精确工作电流是指，当对应于（   ）时，继电器刚好动作的电流。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69393' and id < 4492002 and id<>'4492002' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69393' and id > 4492002 and id<>'4492002' order by id asc limit 5