保护安装处到保护范围末端的线路阻抗称为阻抗继电器的（   ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69393' and id < 4492026 and id<>'4492026' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69393' and id > 4492026 and id<>'4492026' order by id asc limit 5