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2Â¥2009-02-21 14:19:09
zhaoyangqufu
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3Â¥2009-02-21 14:25:54
xi2004
ÖÁ×ðľ³æ (Ö°Òµ×÷¼Ò)
- CMEI: 10
- Ó¦Öú: 125 (¸ßÖÐÉú)
- ½ð±Ò: 16769.9
- É¢½ð: 12393
- ºì»¨: 221
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- ÔÚÏß: 436.9Сʱ
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- ×¢²á: 2007-04-24
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http://www.answers.com/topic/isomer i¡¤so¡¤mer (¨©'sə-mər) Chemistry. Any of two or more substances that are composed of the same elements in the same proportions but differ in properties because of differences in the arrangement of atoms. Physics. Any of two or more nuclei with the same mass number and atomic number that have different radioactive properties and can exist in any of several energy states for a measurable period of time. Õâ¸öÌ«³£¼ûÁË, ¶øÇÒÔç¾Íѧ¹ýÁË. isostructural crystallography) Pertaining to crystalline materials that have corresponding atomic positions, and have a considerable tendency for ionic substitution. Õâ¸öÃèÊö½á¹¹Ê±ºÜ³£ÓÃ, ±ÈÈçÁ½¸ö½á¹¹ÀàËÆ(¿Õ¼äȺһÑù, ¾§°û²ÎÊýÏà½ü, Á½¸ö½á¹¹½ö½ö½ðÊôÀë×Ó²»Í¬µÈ), ¾Í¿ÉÒÔ˵A is isostructural to B. Al¡¤low¡¤er n. 1. An approver or abettor. [Obs.] 2. One who allows or permits. Õâ¸öÍ·Ò»´ÎÌý˵, ²»¶®. |

4Â¥2009-02-21 14:37:26
zhaoyangqufu
ÖÁ×ðľ³æ (ÖªÃû×÷¼Ò)
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- ½ð±Ò: 15924.8
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- רҵ: ÎÞ»ú»¯Ñ§
5Â¥2009-02-22 08:31:29
xi2004
ÖÁ×ðľ³æ (Ö°Òµ×÷¼Ò)
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- Ó¦Öú: 125 (¸ßÖÐÉú)
- ½ð±Ò: 16769.9
- É¢½ð: 12393
- ºì»¨: 221
- Ìû×Ó: 4161
- ÔÚÏß: 436.9Сʱ
- ³æºÅ: 354550
- ×¢²á: 2007-04-24
- רҵ: ½á¹¹»¯Ñ§
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http://www.answers.com/allomerism allomerism n. Consistency in crystalline form with variation in chemical composition. allomerous al¡¤lom'er¡¤ous adj. ËùνÒìÖÊͬ¾§. Allomerism (redirected from Allomer) Also found in: Medical Allomerism is the similarity in the crystalline structure of substances of different chemical composition. References Penguin Science Dictionary 1994, Penguin Books |

6Â¥2009-02-22 15:47:07














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