±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 2152  |  »Ø¸´: 8
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

ÄäÃû

Óû§×¢Ïú (ÖøÃûдÊÖ)

±¾Ìû½öÂ¥Ö÷¿É¼û

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   ͬ·½Ïò¹ã²¥   ÉêÇëC-EPI   »Ø¸´´ËÂ¥   ±à¼­   ²é¿´ÎÒµÄÖ÷Ò³

kinkilyou

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
fatewu: ½ð±Ò+1, лл»ØÌû£¬»¶Ó­³£À´½»Á÷~ 2014-10-15 21:24:03
li135(liwentao2010´ú·¢): ½ð±Ò+3 2015-01-05 18:22:53
ÖÆ±¸£º4NaH + BF3 === NaBH4 + +3NaF
¡¡¡¡4NaH + B(OCH3)3 === NaBH4 + 3NaCH3O
»¹²»ÈçÂòÏֳɵġ£
3Â¥2014-10-15 20:58:30
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 9 ¸ö»Ø´ð

westsphere

½ð³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
liwentao2010: ½ð±Ò+1, лл»ØÌû£¬»¶Ó­³£À´½»Á÷ 2014-10-15 19:41:00
li135(liwentao2010´ú·¢): ½ð±Ò+2 2015-01-05 18:22:46
ÕâÖÖÒ©Æ·ºÜ±ãÒË£¬Ö±½ÓÂò¾ÍºÃÁË
2Â¥2014-10-15 19:14:15
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

pzz1119

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
3Â¥: Originally posted by kinkilyou at 2014-10-15 20:58:30
ÖÆ±¸£º4NaH + BF3 === NaBH4 + +3NaF
¡¡¡¡4NaH + B(OCH3)3 === NaBH4 + 3NaCH3O
»¹²»ÈçÂòÏֳɵġ£

ËûÓ¦¸ÃÎʵÄÊÇÅðÇâ»¯ÄÆµÄÅäÖ÷½·¨
easy£¬easy¡£¡£¡£¡£
4Â¥2014-10-15 22:41:38
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wyzwyz0088

ľ³æ (Ö°Òµ×÷¼Ò)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
fatewu: ½ð±Ò+1, лл»ØÌû£¬»¶Ó­³£À´½»Á÷~ 2014-10-16 17:25:21
li135(liwentao2010´ú·¢): ½ð±Ò+2 2015-01-05 18:23:11
¸ÃÒ©Æ·µÄÖÆ±¸Ì«Î£ÏÕÁË£¬½¨Ò鹺Âò£¬ÔÙÅäÖÆ¾ßÌåŨ¶ÈµÄÈÜÒº
5Â¥2014-10-16 16:49:18
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ÉúÎïѧ308·ÖÇóµ÷¼Á£¨Ò»Ö¾Ô¸»ª¶«Ê¦´ó£© +9 ÏàÐűػá¹ââÍòÕ 2026-04-06 12/600 2026-04-06 21:49 by 52305043001
[¿¼ÑÐ] 305Çóµ÷¼Á +3 77Qi 2026-04-06 3/150 2026-04-06 15:36 by going home
[¿¼ÑÐ] Ò»Ö¾Ô¸Ö£ÖÝ´óѧ²ÄÁÏÓ뻯¹¤085600£¬Çóµ÷¼Á +27 ³ÔµÄ²»ÉÙ 2026-04-02 27/1350 2026-04-06 15:19 by 495374996
[¿¼ÑÐ] Ò»Ö¾Ô¸ºÓ±±¹¤Òµ´óѧ²ÄÁϹ¤³Ì£¬³õÊÔ344Çóר˶µ÷¼Á +6 15933906766 2026-04-05 6/300 2026-04-06 13:21 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 0817»¯Ñ§¹¤³ÌÓë¼¼ÊõÇóµ÷¼Á£¬Ò»Ö¾Ô¸Öк£Ñó319 +14 lv945 2026-04-04 14/700 2026-04-06 10:20 by À¶ÔÆË¼Óê
[¿¼ÑÐ] ±¾¿Æ211£¬293·ÖÇëÇóµ÷¼Á +8 Á«²Ë¾ÍÊÇź°É 2026-04-03 9/450 2026-04-05 19:12 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 284Çóµ÷¼Á +7 Ðìͬѧ_001 2026-04-04 13/650 2026-04-05 17:19 by yulian1987
[¿¼ÑÐ] 282Çóµ÷¼Á +3 aaa³µÁ¾ 2026-04-01 3/150 2026-04-05 17:03 by yulian1987
[¿¼ÑÐ] 313Çóµ÷¼Á +5 º£ÈÕº£ÈÕ 2026-04-04 7/350 2026-04-05 13:58 by imissbao
[¿¼ÑÐ] µ÷¼Á +3 ºÃºÃ¶ÁÊé¡£ 2026-04-02 3/150 2026-04-05 13:02 by arrow8852
[¿¼ÑÐ] 290Çóµ÷¼Á +7 luoziheng 2026-04-04 7/350 2026-04-04 23:17 by lqwchd
[¿¼ÑÐ] ¿É¿çרҵµ÷¼Á +3 ÖÜµÄµÃµØ 2026-04-04 6/300 2026-04-04 22:21 by barlinike
[¿¼ÑÐ] 341Çóµ÷¼Á +3 Âå¶àÂÞ 2026-04-02 4/200 2026-04-04 21:36 by ÖÇÄÜÖÇ»Û
[¿¼ÑÐ] 325Çóµ÷¼Á +4 ´º·ç²»½èÒâ 2026-04-04 4/200 2026-04-04 14:46 by ÏæÅ©´¢ÄܲÄÁÏ
[¿¼ÑÐ] Çóµ÷¼Á£¬Ò»Ö¾Ô¸±±¾©ÖÐÒ½Ò©´óѧ +3 СС´ï²»Áï 2026-04-02 3/150 2026-04-03 22:55 by ³åʸêÄÐÇÍÅ
[»ù½ðÉêÇë] esi¸ß±»ÒýÂÛÎÄÊDz»ÊÇÄܶÔÖбêÓÐËù¼Ó·ÖºÍ°ïÖúÄØ +5 redcom 2026-04-01 6/300 2026-04-03 15:15 by Howard28
[¿¼ÑÐ] Çóµ÷¼Á»ú»á +5 ÒâȾivy 2026-04-03 5/250 2026-04-03 15:13 by qoooooo614
[¿¼ÑÐ] Çóµ÷¼Á +3 usbdndj 2026-04-03 3/150 2026-04-03 14:10 by dxiaoxin
[¿¼ÑÐ] Ò»Ö¾Ô¸±±¾©¿Æ¼¼´óѧ²ÄÁÏѧ˶328·ÖÇóµ÷¼Á +6 1¶Îʱ¼ä 2026-03-31 7/350 2026-04-02 13:57 by 3041
[¿¼ÑÐ] Çóµ÷¼Á£¬Ò»Ö¾Ô¸±±ÁÖʳƷÓëÓªÑø095500£¬301·Ö£¬ÒѹýÁù¼¶£¬ÓпÆÑо­Àú +4 ¿ìÀÖ´¢Ðî¹Þ 2026-03-31 4/200 2026-04-01 09:26 by JourneyLucky
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û