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关注：1
2013-05-23 12:21
求翻译：并在1878年，开始白炽灯的研究是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
并在1878年，开始白炽灯的研究
问题补充： |
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2013-05-23 12:21:38
And in 1878 began the study incandescent
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2013-05-23 12:23:18
Incandescent lamps and, in 1878, began the research
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2013-05-23 12:24:58
And in 1878, started the incandescent lamp research
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2013-05-23 12:26:38
And in 1878 and began study of incandescent lamps
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2013-05-23 12:28:18
And in 1878 and began study of incandescent lamps
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