电视照明电光源的有效寿命是（ ）的全部累计点亮时间。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28907' and id < 2354687 and id<>'2354687' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28907' and id > 2354687 and id<>'2354687' order by id asc limit 5