某距离保护的动作方程为，它的动作特性是（  ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69478' and id < 4500822 and id<>'4500822' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69478' and id > 4500822 and id<>'4500822' order by id asc limit 5