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lifangzhao: ½ð±Ò+1, лл¿© 2012-05-28 10:47:51
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lifangzhao: ½ð±Ò+1, ·­ÒëEPI+1, ллÀ² 2012-05-28 10:47:28
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lifangzhao: ½ð±Ò+1, лл ºÇºÇ 2012-05-28 10:48:10
lifangzhao: ½ð±Ò+2, ¡ï¡ï¡ïºÜÓаïÖú, thankyou 2012-05-29 09:00:13
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Çë²Î¿¼£ºhttps://myweb.unomaha.edu/~dstack/2250/Overheads/EWG_EDG.PDF
https://en.wikipedia.org/wiki/Polar_effect
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