Znn3bq.jpeg
²é¿´: 987  |  »Ø¸´: 4
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

brianluy

¾èÖú¹ó±ö (ÕýʽдÊÖ)

[ÇóÖú] ÄÇλÄܸæËßÎÒʲô½Ð2(1), 3(1), 4(1) heliceµÈÊÇʲôÒâ˼ѽ£¿

ÎÒ×î½üÔÚдÎÄÕÂʱ£¬³õ´ÎÅöµ½Ò»Î¬ÂÝÐý½á¹¹£¬ÔĶÁ±ðÈËÎÄÏ×ʱ£¬¾­³£·¢ÏÖÓÐÈËÓÃ2(1), 3(1), 4(1) heliceµÈÀ´±íʾ£¬À¨ºÅµÄ1ÊÇϱê

ÎÒÏëÇë´ó¼ÒÖ¸µãһϣ¬Õâ¸ö·ûºÅ±í´ïʲôÒâ˼£¬Èç¹ûÄÜÌṩÏà¹ØµÄ³ö´¦»ò¶¨Òå¾ÍºÃÁË£¬·Ç³£¸Ðл£¡
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

µt­[

гæ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
brianluy: ½ð±Ò+5, ¡ïÓаïÖú, ллÄãµÄ²ÎÓ룡 2013-11-13 13:54:55
¼¸ÖØÂÝÐý¡£
¼òµ¥Ëµ¾ÍÊǾ­¹ý¼¸¸ö½Úµã»Øµ½³õʼ¡£
³ö´¦£¬Ëæ±ãÕÒ±¾½á¹¹»¯Ñ§¶¼ÓÐ
3Â¥2013-11-13 11:54:44
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 5 ¸ö»Ø´ð

brianluy

¾èÖú¹ó±ö (ÕýʽдÊÖ)

лл´ó¼ÒÁË£¡

2£¨1£©¾ÍÊDZíʾ¶þÖØ£¬
µ«ÓÐЩӢÎÄÀï±íʾΪ2-fold£¬
ÇëÎÊ2-foldºÍ 2(1) (1Ϊϱê)ÊÇͬһ¸öÒâ˼Âð£¬Ð»Ð» ÁË
4Â¥2013-11-13 13:54:09
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

pigrass

ר¼Ò¹ËÎÊ (ÖøÃûдÊÖ)

ÒÁ¿¨Ë¹ÌصÄСÖí

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÒýÓûØÌû:
4Â¥: Originally posted by brianluy at 2013-11-13 13:54:09
лл´ó¼ÒÁË£¡

2£¨1£©¾ÍÊDZíʾ¶þÖØ£¬
µ«ÓÐЩӢÎÄÀï±íʾΪ2-fold£¬
ÇëÎÊ2-foldºÍ 2(1) (1Ϊϱê)ÊÇͬһ¸öÒâ˼Âð£¬Ð»Ð» ÁË

Helix±í´ï·½Ê½
¡ª¡ª¸ß·Ö×ÓÎïÀí µÚÈý°æ ºÎÂü¾ý 153Ò³
ÄÇλÄܸæËßÎÒʲô½Ð2(1), 3(1), 4(1) heliceµÈÊÇʲôÒâ˼ѽ£¿
n-fold
¡ª¡ªÎ¬»ù°Ù¿Æ Rotational_symmetry
ÄÇλÄܸæËßÎÒʲô½Ð2(1), 3(1), 4(1) heliceµÈÊÇʲôÒâ˼ѽ£¿-1
#ÓÐÎÊÌâ·¢ÂÛ̳£¬²»½ÓÊÜ˽ÁÄ#°®¾§Ì壬°®MaterialsStudio#MSר¼­µã»÷ÓÒ±ß#http://emuch.net/taotie/41673.html#ÎïÐÔÊý¾Ý#http://webbook.nist.gov/chemistry/#
5Â¥2013-11-14 10:34:39
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ÉúÎïѧ308Çóµ÷¼Á£¨Ò»Ö¾Ô¸»ª¶«Ê¦´ó£© +6 ÏàÐűػá¹ââÍòÕ 2026-04-10 6/300 2026-04-11 05:23 by zhuwenxu
[¿¼ÑÐ] 275Çóµ÷¼Á +7 1624447980 2026-04-08 8/400 2026-04-11 00:45 by dc19971224
[ÕÒ¹¤×÷] ɽ¶«¸ßУ½Ìʦ¿¼ºË³¬¼¶ÎÞµ×Ïߣ¬Ô±¹¤¹ý²»ÏÂÈ¥À² +3 qut2026 2026-04-09 5/250 2026-04-10 22:52 by qut2026
[¿¼ÑÐ] 332Çóµ÷¼Á +12 ½¶½¶123 2026-04-10 12/600 2026-04-10 19:01 by hmn_wj
[¿¼ÑÐ] Ò»Ö¾Ô¸»¦9£¬326ÉúÎïѧÇóÏà¹Ø×¨Òµµ÷¼Á +4 Áõīī 2026-04-09 4/200 2026-04-10 12:07 by pengliang8036
[¿¼ÑÐ] Çó +6 »¯¹¤×¨Ë¶323·Ö 2026-04-04 6/300 2026-04-10 10:04 by may_ÐÂÓî
[¿¼ÑÐ] 297Çóµ÷¼Á +8 Kwgyz 2026-04-09 8/400 2026-04-09 23:22 by may_ÐÂÓî
[¿¼ÑÐ] 269µç×ÓÐÅÏ¢Çóµ÷¼Á£¬¿Éתרҵ +9 ¶À×Ãwl 2026-04-06 9/450 2026-04-09 20:55 by laoshidan
[ÂÛÎÄͶ¸å] ÇóÖúÎÄÏ×Ô­ÎÄ 10+3 18500821399 2026-04-08 3/150 2026-04-09 16:56 by ±±¾©À³ÒðÈóÉ«
[¿¼ÑÐ] ²ÄÁϹ¤³Ì322 +18 ¹þ¹þ¹þºðºðºð¹þ 2026-04-07 19/950 2026-04-09 10:44 by cymywx
[¿¼ÑÐ] Ò»Ö¾Ô¸ÄϾ©º½¿Õº½Ìì´óѧ ²ÄÁÏÓ뻯¹¤329·ÖÇóµ÷¼Á +11 Mr. Z 2026-04-05 12/600 2026-04-08 16:15 by luoyongfeng
[¿¼ÑÐ] µç×ÓÐÅÏ¢346 +4 zuoshaodian 2026-04-08 4/200 2026-04-08 11:54 by zzucheup
[¿¼ÑÐ] µ÷¼Á +3 µçÆø300Çóµ÷¼Á²» 2026-04-08 6/300 2026-04-08 09:39 by µçÆø300Çóµ÷¼Á²»
[¿¼ÑÐ] 301Çóµ÷¼Á +18 121. 2026-04-04 18/900 2026-04-07 17:49 by À¶ÔÆË¼Óê
[¿¼ÑÐ] »úеר˶274Çóµ÷¼Á£¬²»ÌôרҵѧУ +6 ·º·º2333 2026-04-05 8/400 2026-04-06 18:06 by ·º·º2333
[¿¼ÑÐ] 377Çóµ÷¼Á +6 by.ovo 2026-04-05 6/300 2026-04-05 22:18 by dongzh2009
[¿¼ÑÐ] 283Çóµ÷¼Á +5 baiiyu 2026-04-05 6/300 2026-04-05 20:35 by à£à£à£0119
[¿¼ÑÐ] Ò»Ö¾Ô¸±±½»´ó²ÄÁϹ¤³Ì×Ü·Ö358Çóµ÷¼Á +6 cs0106 2026-04-05 6/300 2026-04-05 16:34 by imissbao
[¿¼ÑÐ] ¹¤¿Æ277·ÖÇóµ÷¼Á²ÄÁÏ +8 ÉÏÁËÉÏÁËÉÏŶ 2026-04-05 9/450 2026-04-05 13:05 by wwytracy
[¿¼ÑÐ] ±¾¿Æ211£¬×¨Òµ085404£¬293·ÖÇëÇóµ÷¼Á +5 Á«²Ë¾ÍÊÇź°É 2026-04-04 5/250 2026-04-04 14:08 by ÕâÊÇÒ»¸öÎÞÁĵÄê
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û