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°®ÓëÓêÏÂ(½ð±Ò+1): ~£¡ 2011-08-31 20:57:41
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Involves semi-circle stretch Éæ¼°µ½µÄ°üÀ¨£º°ë»·ÀÉì¡¢ Quadrant stretch ÏóÏÞÀÉì¡¢ Ring stretch ÒÔ¼°È«»·ÀÉì |
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sltmac(½ð±Ò+1): ¸Ðл½»Á÷~~ 2011-09-01 08:05:15
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Involves semi-circle stretch Éæ¼°µ½°ë»·ÉìËõ Quadrant stretch ËÄ·Ö»·ÉìËõ Ring stretch »·ÉìËõ For example: It has been described that the ring stretches for aromatic and heteroaromatic rings can be divided into two different modes, the quadrant stretch and the semicircle stretch, as illustrated in Figure 2. £¨¼û¸½¼þÎĵµÖиßÁÁµÄFigure 2): https://good.gd/1559750.htm |

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