PMU装置守时l h后，同步误差不超过（ ）叩。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29463' and id < 2399295 and id<>'2399295' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29463' and id > 2399295 and id<>'2399295' order by id asc limit 5