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Large scale enhanced the lamp tube service life, international still did not have the precedent.
大幅度地提高了灯管的使用寿命，国际尚无先例。
youdao
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Lamp with long, 3000 hour service life.
使用预设寿命长的(3000小时)灯泡。
youdao
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Lamp with long, 3000 hour service life.
使用预设寿命长的(3000小时)灯泡。
youdao