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yan chang ri guang deng shi yong shou ming
Pages: 56
Year: Issue:  4
Journal: Resources Economization and Comprehensive Utilization

Abstract: 延长日光灯使用寿命日光灯管使用一段时间后,灯管两头会发黑,这时可将灯管掉头并旋转180。再使用,这样可提高发光率,又能延长使用寿命。因为日光灯在点燃时,灯管两头的两个灯脚中只有两个点上的钨丝会蒸发,使用日子久了这两点附近会开始发黑老化,而另两点往往还...
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