±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 1203  |  »Ø¸´: 5

calcuss

ľ³æ (ÕýʽдÊÖ)

[ÇóÖú] °±»ùËá½á¹¹·ÖÎö

ÇóÖú£¬ÓÐûÓÐÖªµÀDÐÍÓëLÐͰ±»ùËáÈçºÎ¿ÉÒÔ¼ì²é³öÀ´°¡£¿ÓÐûÓлú¹¹¿ÉÒÔÖ±½Ó¼ì²éµÄ£¿ÓÃʲô·½·¨¿ÉÒÔ¼ì²éÄØ£¿
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

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

Æ®·ÉµÄÓê3219

Ìú³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
¾ßÌå¼ì²âDÐÍÓëLÐͰ±»ùËáµÄ·½·¨²»ÊǺÜÇå³þ£¬Ó¦¸ÃÊÇûÓУ¬²»¹ýÄã¿ÉÒÔÀûÓð±»ùËá¼ì²âÒǽøÐа±»ùËáÖÖÀà¼ì²â£¬È»ºó¸ù¾Ýʵ¼ÊÇé¿ö£¬²éÕÒÏà¹Ø×ÊÁÏ£¬¸ù¾ÝDÐÍÓëLÐͰ±»ùËáµÄ½á¹¹Ìص㣬½øÐÐÅбð£¡
Æ®·ÉµÄÓê
2Â¥2013-04-03 16:38:02
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

swallow13

½û³æ (ÕýʽдÊÖ)

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
±¾ÌûÄÚÈݱ»ÆÁ±Î

3Â¥2013-04-03 17:28:22
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

klosexs1987

½ð³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÒýÓûØÌû:
3Â¥: Originally posted by swallow13 at 2013-04-02 21:28:22
lzÄãÊÇÏëÓÃÓÚ¼ø±ð»¹ÊÇʲô£¿Èç¹ûÖ»ÊǼø±ð ¿ÉÒÔ²â±ÈÐý¹â¶È ·ÖÎöµÄ»° ÓÃÊÖÐÔÖùÊÔÊÔ°É

Sorry for figuring out that u just mistake the concepts of D/L and (+)/(-). D/L conformation is not the same as (+)/(-). It is determined by the structure the chemical has, while (+)/(-) is tested by polarimeter. The materials with D conformation can be either (+)/(-), so u can get to know the optical rotation of a sample by polarimeter, but can't draw a conclusion that it is of D or L conformation.
4Â¥2013-04-05 06:45:13
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xiaobai1232268

ľ³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
Çø·ÖDÐͺÍLÐͲâ±ÈÐý°É£¬²»¹ýÓеݱ»ùËáÓÐÁ½¸öÊÖÐÔ̼£¬±ÈÐýºÏ¸ñÒ²¿ÉÄܲ»ÊÇÄǸöÎïÖÊ£¬ÒªÉÏÊÖÐÔÖù£¬´óÈü贵IJ»´í

[ ·¢×ÔÊÖ»ú°æ http://muchong.com/3g ]
5Â¥2013-04-05 08:59:57
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

swallow13

½û³æ (ÕýʽдÊÖ)

±¾ÌûÄÚÈݱ»ÆÁ±Î

6Â¥2013-04-05 09:56:36
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ calcuss µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 285Çóµ÷¼Á +4 ¶ñ·¨´ó¶þµÄÆøÎ¶ß 2026-04-05 5/250 2026-04-05 20:32 by 286640313
[¿¼ÑÐ] Ò»Ö¾Ô¸±±¾©½»Í¨´óѧ²ÄÁϹ¤³Ì×Ü·Ö358Çóµ÷¼Á +4 cs0106 2026-04-04 4/200 2026-04-05 18:46 by imissbao
[¿¼ÑÐ] 280Çóµ÷¼Á +4 Àîrien 2026-04-04 4/200 2026-04-05 18:44 by imissbao
[¿¼ÑÐ] 295Çóµ÷¼Á +8 FZAC123 2026-04-03 8/400 2026-04-05 17:46 by À¶ÔÆË¼Óê
[¿¼ÑÐ] µç×ÓÐÅÏ¢µ÷¼Á½»²æÑ§¿ÆÓÐÍÆ¼öÂð +6 jhtfeybgj 2026-04-01 9/450 2026-04-05 11:13 by Öí»á·É
[¿¼ÑÐ] 0703×Ü·Ö331Çóµ÷¼Á +10 ZY-05 2026-04-04 13/650 2026-04-05 11:03 by xiayan13521
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤363ÇóÍÆ¼ö +7 zh096 2026-04-04 7/350 2026-04-05 09:11 by İÇï26
[¿¼ÑÐ] 301Çóµ÷¼Á +18 ÂæÍÕÄÐÈË 2026-04-02 18/900 2026-04-04 20:33 by À¶ÔÆË¼Óê
[¿¼ÑÐ] µ÷¼Á +9 19945159693 2026-04-03 10/500 2026-04-04 20:16 by dongzh2009
[¿¼ÑÐ] 085601£¬Ò»Ö¾Ô¸Ïôó334¸´ÊÔ±»Ë¢Çóµ÷¼Á +13 ÔøÑöÖ® 2026-04-03 15/750 2026-04-04 20:13 by dongzh2009
[¿¼ÑÐ] 319Çóµ÷¼Á +4 ÐÇÐDz»Õ£ÑÛà¶ 2026-04-03 4/200 2026-04-04 16:25 by ÖзÉÔº¿Õ¹ÜѧԺÑ
[¿¼ÑÐ] 291Çóµ÷¼Á +4 ÃÔÃÉľľ 2026-04-01 5/250 2026-04-04 15:59 by sihailian3
[¿¼ÑÐ] 0856£¬269·ÖÇóµ÷¼Á +15 ÓÐѧÉϾÍÐÐÇóÇóÁ 2026-03-30 18/900 2026-04-03 16:50 by melodiousnow
[¿¼ÑÐ] 303Çóµ÷¼Á +3 һɫÇåÓð 2026-04-02 4/200 2026-04-03 10:22 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 273Çóµ÷¼Á +20 ÀîÜÆÐÂ1 2026-03-31 20/1000 2026-04-03 09:58 by linyelide
[¿¼ÑÐ] 372·Ö²ÄÁÏÓ뻯¹¤£¨085600£©Ò»Ö¾Ô¸ºþÄÏ´óѧÇóµ÷¼Á +5 À¶¼ãƬ 2026-04-02 6/300 2026-04-02 21:37 by dongzh2009
[¿¼ÑÐ] 0703Ò»Ö¾Ô¸ÄÏʦ´ó334Çóµ÷¼Á +4 seven7yu 2026-03-30 4/200 2026-04-01 16:10 by oooqiao
[¿¼ÑÐ] 311Çóµ÷¼Á +10 ÀîÜÆÐÂ1 2026-03-31 10/500 2026-04-01 14:38 by chenqifeng666
[¿¼ÑÐ] 358Çóµ÷¼Á +3 ÍõÏòÑô»¨ 2026-03-31 3/150 2026-04-01 09:56 by zzchen2000
[¿¼ÑÐ] ¼ª´óÉúÎïѧ326·ÖÇóµ÷¼Á +3 sunnyupup 2026-03-31 3/150 2026-03-31 09:28 by longlotian
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û