全光中继器是使传输信号在中继器内以_-的形式放大。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30264' and id < 2448249 and id<>'2448249' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30264' and id > 2448249 and id<>'2448249' order by id asc limit 5