现代电力网中巨大的电能几乎全部由同步发电机提供。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68478' and id < 4421464 and id<>'4421464' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68478' and id > 4421464 and id<>'4421464' order by id asc limit 5