发电机转子运动方程是非线性微分方程组。(  )

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69516' and id < 4503625 and id<>'4503625' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69516' and id > 4503625 and id<>'4503625' order by id asc limit 5