²é¿´: 1348  |  »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
[»ù½ðÉêÇë] »ù½ðϵͳʲôÄÚÈÝҲûÓÐ 30+3 winsaint 2026-08-27 6/300 2026-08-28 01:46 by alongwaytogo
[»ù½ðÉêÇë] ¹ú×ÔÈ»ÃæÉϸ´ÅÌ~»¶Ó­ÌÖÂÛ (½ð±Ò+5) +11 ÇçÌì¼ÓÓÍ 2026-08-26 12/600 2026-08-28 01:22 by li09465290@
[»ù½ðÉêÇë] Ϊʲô×ÊÖúÊý¸÷´ó¸ßУ¶¼´´Ð¸ߣ¬×Ô¼ºÉêÇëÔõô¾ÍÕâôÄÑ +9 Kittylucky 2026-08-27 9/450 2026-08-28 01:08 by jurkat.1640
[»ù½ðÉêÇë] ÃæÉϺÏ×÷µ¥Î»¸ÇÕ +5 ssyjh 2026-08-27 5/250 2026-08-27 20:50 by gdfollow
[»ù½ðÉêÇë] »ù½ð²»ÖУ¬¹²Ãã +10 eulota 2026-08-26 10/500 2026-08-27 17:23 by lqllinqiaoli
[»ù½ðÉêÇë] Ôõô¿´Çà»ùÖÐÁËûÓа¡ +5 Ò¶¾Å΢ 2026-08-26 5/250 2026-08-27 10:35 by l_zh2008
[»ù½ðÉêÇë] Ϊʲô ¹ú¼Ê(µØÇø)ºÏ×÷Óë½»Á÷ÏîÄ¿ ûÓзŰñ£¿ 10+3 majunge000 2026-08-26 11/550 2026-08-27 08:42 by ±±¾©À³Òð±à¼­
[˶²©¼ÒÔ°] ÊÛSCIÒ»ÇøT0PÎÄÕ£¬ÎÒ:8.O.55.1.O.54,¿ÆÄ¿ÆëÈ«,¿É+¼± +3 LIbGuocjEEYw 2026-08-26 4/200 2026-08-27 02:01 by Ie9AyIAvGbvs
[»ù½ðÉêÇë] 2026ÄêµÄ¹ú¼ÒÉç¿Æ»ù½ðÏîĿͨѶÆÀÉóµÄйæÔòÓëж¯Ïò¡¢ÐÂÌôÕ½ +7 process2012 2026-08-23 10/500 2026-08-26 19:23 by hmhminy
[»ù½ðÉêÇë] 2026¹ú×ÔÈ»º¯ÆÀ·Ñµ½ÕË +22 ÑòÑü°å 2026-08-21 25/1250 2026-08-26 15:00 by zuocuiping
[»ù½ðÉêÇë] ³öÀ´ÁË +9 trojank 2026-08-26 9/450 2026-08-26 14:25 by ±¦±´³æ×Ó
[»ù½ðÉêÇë] Ϊʲô¹ú×ÔÈ»²»ÄÜÖ±½Ó¹«²¼ +4 bjdxyxy 2026-08-26 4/200 2026-08-26 13:12 by qingmu1201
[»ù½ðÉêÇë] ¹ú¼ÊºÏ×÷¿É²éÁË£¬ÖÐÁËÃæÉÏ (EPI+1)(½ð±Ò+50) +18 Ldrop2023 2026-08-26 18/900 2026-08-26 11:15 by cmrandy
[»ù½ðÉêÇë] ϵͳ½ø²»È¥ +4 yanglien 2026-08-26 5/250 2026-08-26 11:10 by wenfengw83
[»ù½ðÉêÇë] ÏîÄ¿ÐÅÏ¢ºÍ¾­·ÑÐÅÏ¢ÔÚϵͳÀï¶¼¿ÉÒÔ¿´µ½ÁË +6 wittyboy 2026-08-26 14/700 2026-08-26 10:55 by wittyboy
[»ù½ðÉêÇë] ¹úºÏ¿É²éÁË +3 paperzjh 2026-08-26 3/150 2026-08-26 10:41 by LemmonTr
[Ö°³¡ÈËÉú] ѧÉúײ¼û¸¨µ¼Ô±ËÍÍâÂô£¬µÚ¶þÌìÈ«°à¶¼³ÁĬÁË +3 ¾¨ÓãÈÚ½ð_Õã½­_É 2026-08-22 3/150 2026-08-26 09:01 by zzuzxg
[»ù½ðÉêÇë] ¹úºÏÏÖÔڲ鲻µ½ÁËÂ𣿠+10 chengyan1220 2026-08-24 20/1000 2026-08-26 08:57 by peasantsprig
[»ù½ðÉêÇë] ijЩ»ú¹¹£¬ÒÔЧÂʵÍΪÈÙ£¬ÒÔЧÂʵÍ×÷Ϊ´æÔڸР+9 yuleib84 2026-08-25 10/500 2026-08-25 17:14 by alexon
[»ù½ðÉêÇë] ½¨Òé»ù½ð·¢²¼Ìáǰ¸ø³öÃ÷È·µÄʱ¼äµã +13 kulium 2026-08-21 16/800 2026-08-24 16:27 by superceng
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û