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etin: ½ð±Ò+1, ллÀ¶»ÛMMÓ¦Öú£¬ºÃ¾Ã²»¼û°¡ 2012-08-19 22:35:59
considerable progress in improving efficiency of solar battery has been made from these studies, but the efficiency is still low
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2Â¥2012-08-19 18:27:51
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etin: ½ð±Ò+1, ллӦÖú 2012-08-19 22:36:20
Although the efficiency of solar battery have been improved by these researches, it still remains low.
3Â¥2012-08-19 18:45:21
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5Â¥2012-08-19 21:08:55
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Substantial progresses have been made in the improvement of the use efficiency of solar battery in these studies; however, the efficiency is not high enough (×¢£¬Èç¹ûÕâѧÊõÎÄÕ£¬ÕâÀïÐèÒª?³ä±È½ÏµÄ±ê×¼£©

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6Â¥2012-08-21 12:53:08
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