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ÕæÇ¿±ØÊ¤: ½ð±Ò+1, ¶àл 2014-07-30 08:26:37
RXMCDM: ½ð±Ò+1, ¶àлӦÖú£¡ 2014-08-12 09:14:09
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thegreatesttalkerisalwaystheleastdoner
2Â¥2014-07-29 23:24:28
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RXMCDM: ½ð±Ò+1, ¶àлӦÖú£¡ 2014-07-30 19:57:16
RXMCDM: ½ð±Ò+1, ¶àлָÕý£¡ 2014-08-12 09:14:22
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2Â¥: Originally posted by zhesmaj at 2014-07-29 23:24:28
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3Â¥2014-07-30 12:51:28
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RXMCDM: ½ð±Ò+1, ¶àлӦÖú£¡ 2014-07-30 15:33:07
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zhesmaj

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3Â¥: Originally posted by phu_grassman at 2014-07-30 12:51:28
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thegreatesttalkerisalwaystheleastdoner
5Â¥2014-07-31 09:43:45
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mac194

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RXMCDM: ½ð±Ò+1, ¶àлӦÖú£¡ 2014-08-01 00:34:23
ÓãµÄÌì¿Õ(RXMCDM´ú·¢): ½ð±Ò+2, ¶àлӦÖú£¡ 2014-08-12 09:15:01
[¸Ðл½±ÉÍ]

½¨Òéд:
  "a molecule symmetric about ___"  [¼ûÏÂ]

ÉîÈë½éÉÜ:
  https://chemistry.tutorvista.com ... cular-symmetry.html
Óлú»¯ºÏÎïÁ÷³Ì:
  https://www2.chemistry.msu.edu/f ... ymmetry/symmtry.htm
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