一般电动机电路上应有（）保护。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27215' and id < 2260406 and id<>'2260406' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27215' and id > 2260406 and id<>'2260406' order by id asc limit 5