光端机能容忍的光通道功率代价，一般应用要求不超过 。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30264' and id < 2448234 and id<>'2448234' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30264' and id > 2448234 and id<>'2448234' order by id asc limit 5