±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 2090  |  »Ø¸´: 11
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£

sjzhou

[½»Á÷] N-¼×»ùßÁ¿©Íéͪ¸ßλá·Ö½âÂð?

ǰЩÌì,½«N-¼×»ùßÁ¿©ÍéͪÔÚ250¶È΢²¨¼ÓÈÈ15·ÖÖÓ,·¢ÏÖN-¼×»ùßÁ¿©ÍéͪÓÉÎÞÉ«±ä³ÉÁË»ÆÉ«,ÇëÎÊ·¢ÉúÁËʲô·´Ó¦?Éú³ÉÁËʲô?ллÀ­
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

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

gianthai

½ð³æ (ÕýʽдÊÖ)

ÎÒÓõÄÊÇ2-±ÈÂåÍéͪ£¬110¶ÈÕôÁó£¨ÓÐÇ⻯¸Æ£©£¬ÔõôÕô³öÀ´µÄÊÇÀ¶É«ÁË£¿
Éú»î¾ÍÊÇÃæ¶ÔÏÖʵ΢Ц£¬Í¸¹ýÕϰ­×¢ÊÓδÀ´£¡
2Â¥2007-05-29 20:39:11
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

joli

Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)

joli-beautiful

N-¼×»ùßÁ¿©Íéͪ
ÎÞɫ͸Ã÷ÒºÌ壬Æä·Ðµã202¡æ£¬ÉÁµã95¡æ¡£ÊÜÈÈ±ä»ÆÉ«
ÊÜÈÈ»òȼÉÕʱ»á·Ö½âΪµªÑõ»¯ÎïºÍÒ»Ñõ»¯Ì¼Óж¾ÑÌÎí
☼MYHOME¨?¨Ž♪♫¨?¨Ž¨?¨~¨~¨~¨Ž♪☻/¨?¨€¨€¨€¨Ž¨?¨€¨€¨€¿Ú¨€¨€¨€¨Ž<¨~¨~¨~¨~¨~¨~¨~¨~¨~¨~
3Â¥2007-05-29 23:44:23
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

sjzhou

лл¥ÉϵÄÐÖµÜÖ¸½Ì¡£
¿ÉÊÇ£¬ÎÒ¼õѹÕôÁó³ö´ó²¿·ÖN-¼×»ùßÁ¿©Íéͪºó£¬·¢ÏÖÑÕÉ«»¹ÊÇ»ÆÉ«µÄ£¬Èç¹ûÉú³ÉµÄÊÇÒ»Ñõ»¯Ì¼»òÕßµªÑõ»¯ºÏÎËüÃÇÓ¦¸ÃÔÚÕâÑùµÄÌõ¼þÏÂÔç¾ÍÅܵôÁË£¬ÑÕɫӦ¸ÃΪÎÞÉ«²ÅÊÇ¡£²¢ÇÒ£¬½«¼ÓÈȺóµÄN-¼×»ùßÁ¿©Íéͪ·ÅÖÃÒ»¶Îʱ¼äҲûÓз¢ÏÖÆä±äÑÕÉ«¡£ÅθßÊÖÖ¸µã¡£
4Â¥2007-05-30 08:29:49
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

fengz

ľ³æ (ÖøÃûдÊÖ)

Â¥Ö÷µ¨×ÓÕæ´ó£¬ºÇ£¬250¶È¾Í²»ÅÂÉÕ±¬ÄÇ¡£
ÄÄλţÈËÄܸ㵽Õâhttp://emuch.net/bbs/viewthread.php?tid=177120&fpage=1
5Â¥2007-05-31 20:19:28
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

mengzhiyong

½ð³æ (СÓÐÃûÆø)

reduced pressure distillation is quite a risky operation, especially at high temperature. 250C is very high for a polymer chemistry lab.
6Â¥2007-06-01 02:22:57
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

liu_yanting

½ð³æ (СÓÐÃûÆø)

Ç¿ÁÒ¹Ø×¢ÖУ¡ÇëÎÊN-¼×»ùßÁ¿©ÍéͪÈç¹ûÓëË®½Ó´¥£¬»á·¢Éúʲô·´Ó¦£¿¶ÔÆäÐÔÄÜÓÐʲôӰÏ죿»á¸Ä±äËüµÄÐÔÖÊÂð£¿
ÇëÁ˽âµÄ³æ³æÄܲ»Áߴͽ̣¬¸Ðл£¡
7Â¥2007-06-01 11:34:59
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

therefore99

ÓëË®ÈÎÒâ±ÈÀý»ìÈÜ
8Â¥2007-06-01 12:25:32
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

liu_yanting

½ð³æ (СÓÐÃûÆø)

ллtherefore99£¡
9Â¥2007-06-01 14:10:06
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

huanghong0909

½ð³æ (СÓÐÃûÆø)

ËüÔÚ¸ßÎÂÏ»á·Ö½â£¬Ðè¼õѹÕôÁó
10Â¥2007-07-20 10:25:23
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ sjzhou µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 265Çóµ÷¼Á +15 ÁºÁºÐ£Ð£ 2026-04-01 15/750 2026-04-03 10:40 by txp1986
[¿¼ÑÐ] 274Çóµ÷¼Á +10 Ѧ¶¨Ú̵Ļ¢¡£ 2026-04-01 10/500 2026-04-03 10:13 by tianyyysss
[¿¼ÑÐ] Ò»Ö¾Ô¸°²»Õ´óѧ0817»¯Ñ§¹¤³ÌÓë¼¼Êõ£¬Çóµ÷¼Á +14 ÎÒ²»ÊÇÖ»Òò 2026-04-02 15/750 2026-04-03 09:49 by À¶ÔÆË¼Óê
[¿¼ÑÐ] ÉúÎïѧ308·ÖÇóµ÷¼Á£¨Ò»Ö¾Ô¸»ª¶«Ê¦´ó£© +6 ÏàÐűػá¹ââÍòÕ 2026-03-31 7/350 2026-04-02 23:16 by JourneyLucky
[¿¼ÑÐ] 326·ÖÇóµ÷¼Á +3 ÓÚÊǺõÄØ 2026-04-01 3/150 2026-04-02 21:30 by jing_jenna
[¿¼ÑÐ] 260Çóµ÷¼Á +6 ÖìÜÆÁÕ 2026-04-02 6/300 2026-04-02 20:27 by 6781022
[¿¼ÑÐ] µ÷¼Á +3 ºÃºÃ¶ÁÊé¡£ 2026-04-01 6/300 2026-04-02 15:49 by liumengping
[¿¼ÑÐ] һ־Ըͬ¼Ã´óѧ323·Ö£¨080500£©Çóµ÷¼Á +6 yikeniu 2026-04-01 6/300 2026-04-02 14:19 by smileboy2006
[¿¼ÑÐ] ÄÜÔ´¶¯Á¦ µ÷¼Á +3 ²»ÆÆ²»Á¢0 2026-04-02 3/150 2026-04-02 12:46 by ffffjjjj
[¿¼ÑÐ] 311Çóµ÷¼Á +14 À¶ÔÂÁÁÁÁ 2026-03-30 14/700 2026-04-02 12:18 by 1753564080
[¿¼ÑÐ] 324Çóµ÷¼Á +5 ÏëÉÏѧÇóµ÷ 2026-04-01 6/300 2026-04-02 10:16 by sanrepian
[¿¼ÑÐ] 070300»¯Ñ§Çóµ÷¼Á +14 С»ÆÑ¼±¦ 2026-03-30 14/700 2026-04-02 10:07 by oooqiao
[¿¼ÑÐ] 11408 321·ÖÇóµ÷¼Á +3 huchun12138 2026-03-30 4/200 2026-04-01 22:48 by guanxin1001
[¿¼ÑÐ] Ò»Ö¾Ô¸Äϲý´óѧ324Çóµ÷¼Á +12 hanamiko 2026-03-27 12/600 2026-04-01 22:34 by ÔËÆøyunqi
[¿¼ÑÐ] 290Çóµ÷¼Á +5 dfffsar 2026-03-29 5/250 2026-04-01 19:45 by 6781022
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤£¨0856£©304ÇóBÇøµ÷¼Á +8 Çñgl 2026-03-30 16/800 2026-04-01 17:58 by Çñgl
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤µ÷¼ÁÒ»Ö¾Ô¸´óÁ¬º£ÊÂ085600£¬349 +9 ³ÔµÄ²»ÉÙ 2026-03-30 9/450 2026-04-01 11:24 by wangjy2002
[¿¼ÑÐ] 293·ÖÇóµ÷¼Á£¬ÍâÓïΪ¶íÓï +5 ¼ÓÒ»Ò»¾Å 2026-03-31 5/250 2026-03-31 09:39 by zhshch
[¿¼ÑÐ] 083000»·¾³¿ÆÑ§Ó빤³Ìµ÷¼Á£¬×Ü·Ö281 +4 ³È×Ó£¨Ê¤Ò⣩ 2026-03-30 4/200 2026-03-31 00:44 by Linzejun
[¿¼ÑÐ] 356Çóµ÷¼Á +3 gysy?s?a 2026-03-28 3/150 2026-03-29 00:33 by 544594351
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û