. dan bai zhi de jie gou yu gong neng. botany. å¾3*8èºæï¼helix)ç示æå¾ (P=èºè·ï¼n=æ转ä¸åçæ°£åºé ¸æ°ã ä»»ä½èºæç»æé½å¯ä»¥ç¨ä¸ä¸ªç¬¦å·sã mår(æ1)æ¥è¡¨ç¤ºï¼S 代表èºææ¯è½¬ä¸åçæ®åºæ°ï¼m代表ç±æ°¢é®è¿æ¥æå½¢æçç¯ç åå-æ°ï¼ræ1代表å³ææå·¦æã å æ-¤ä¸ä¸ªèºæå¯ä»¥So^ræs«J表示ãå¦å³æça-èºæ为 ,æaR[]ãå·¦æça-èºæå为ã èºææ¯æ稳å®çæ象ï¼å æ-¤å®ä»¬å¨çèç½ä¸-ä¹æ¯å« éæ丰å¯çãå®å¨Ramachandranå¾ä¸-ä½äºä¸-央ï¼ï¼(}>= -65% ^ 56 ⢠ä¸ãèºæ èºæï¼a-helix) Paulingä¸Corey (1951)ç¨X-å°çº¿è¡å°ææ¯ç 究å¤è¤ çç»æï¼åç°å ¶ä¸-å-å¨0£-èºæï¼è½é¾æè¿-æèºæå½¢ç¶ãa-èºæ çèºè·ï¼pitch)为人ï¼èºææ¯ç»ä¸åï¼3
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectbotany
