Znn3bq.jpeg
ÉÇÍ·´óѧº£Ñó¿ÆÑ§½ÓÊܵ÷¼Á
²é¿´: 125  |  »Ø¸´: 2
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

wencw

Í­³æ (³õÈëÎÄ̳)

[½»Á÷] ÇóÖú ±½È²µÄ·´Ó¦

2,4-¶þÏõ»ùÂȱ½ÓëNH3·¢Éú·´Ó¦ºó£¬µ½µ×ÊÇÉú³É 2£¬4-¶þÏõ»ù±½°·»¹ÊÇ 3£¬5-¶þÏõ»ù±½°·£¬ÎҸоõÊǺóÕߣ¬µ«ÊÇ´ð°¸ÊÇǰһ¸ö£¬²»Ã÷°×£¬ÍûÓлúÅ£È˰ïÎÒ½â´ðÒ»ÏÂ
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

ÎÄ´«Íøwww.issue.org.cn
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wencw

Í­³æ (³õÈëÎÄ̳)

лл,¿´À´ÊÇÎÒÀí½â´íÁË
ÎÄ´«Íøwww.issue.org.cn
3Â¥2007-08-28 22:19:02
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 3 ¸ö»Ø´ð

chemin

Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)

Re

¡ï
chemcccc(½ð±Ò+1,VIP+0):thx
ÄãËù˵µÄ±½È²Ò»°ãÊÇÔÚÇ¿¼î×÷ÓÃÏ£¬±ÈÈç˵NaNH2µÈµÄ×÷ÓÃϲÅÄܲúÉú¡£¶ÔÓÚNH3£¬¼îÐԵͣ¬Ò»°ã²»»á²úÉú±½È²¡£ÄãÌáµ½µÄ¶þÏõ»ùÂȱ½£¬ÓÉÓÚÁ½¸öÏõ»ùµÄ´æÔÚ£¬²¢ÇÒ·Ö±ð´¦ÓÚÁÙλºÍ¶Ô루Ïà¶ÔÓÚÂÈ£©£¬Ê¹ÂÈÈ¡´úµÄλÖÃȱµç£¬±È½ÏÊʺÏÇ׺˻ùÍŽø¹¥£¬È»ºóÏû³ýCl¡£ËùÒÔ²úÎïÊǵ¥Ò»µÄ£¬¾ÍÊǰÑCl»»³ÉNH2¡£¾ßÌåÄ㿴һϸ½¼þ¡£
2Â¥2007-08-28 21:26:39
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] Çóµ÷¼Á +11 Á§ÜÔÒ»¶¨Éϰ¶ 2026-04-10 11/550 2026-04-13 21:36 by gretl
[¿¼ÑÐ] µ÷¼ÁÇóÊÕÁô +31 ¹ûÈ»ÓÐÎÒ 2026-04-10 32/1600 2026-04-13 21:35 by gretl
[¿¼ÑÐ] ÉúÎïѧ308·ÖÇóµ÷¼Á£¨Ò»Ö¾Ô¸»ª¶«Ê¦´ó£©½ÓÊÜ¿çרҵ +8 ÏàÐűػá¹ââÍòÕ 2026-04-13 8/400 2026-04-13 20:26 by biomen
[¿¼ÑÐ] 245Çóµ÷¼Á +3 ±ùÌÇéÙ?ÆûË® 2026-04-13 7/350 2026-04-13 16:42 by ±ùÌÇéÙ?ÆûË®
[¿¼ÑÐ] 0856ר˶Çóµ÷¼Á Ï£ÍûÊÇaÇøÔºÐ£ +23 ºÃºÃÐÝÏ¢ºÃ²»ºÃ 2026-04-09 26/1300 2026-04-13 14:22 by ÕÅzhihao
[¿¼ÑÐ] ʳƷÓëÓªÑø£¨0955£©271Çóµ÷¼Á +9 Éý¸ñ°¢´ï 2026-04-12 9/450 2026-04-13 14:12 by maddjdld
[¿¼ÑÐ] È˹¤ÖÇÄÜ320µ÷¼Á08¹¤À໹Óлú»áÂð +15 Õñ¡ªTZ 2026-04-10 16/800 2026-04-13 14:11 by ÕÅzhihao
[¿¼ÑÐ] ÉúÎïѧµ÷¼Á +11 СȽҪŬÁ¦ 2026-04-10 13/650 2026-04-13 11:46 by µç»¯Ñ§¼°´ß»¯
[¿¼ÑÐ] 291Çóµ÷¼Á +11 ¹ØÒä±±. 2026-04-09 12/600 2026-04-12 10:32 by ÄæË®³Ë·ç
[¿¼ÑÐ] ũѧ0904 312Çóµ÷¼Á +6 Say Never 2026-04-10 6/300 2026-04-11 10:33 by wwj2530616
[¿¼ÑÐ] ũҵ¹ÜÀí302·ÖÇóµ÷¼Á +3 xuening1 2026-04-10 3/150 2026-04-11 10:18 by zhq0425
[¿¼ÑÐ] 346£¬¹¤¿Æ0854Çóµ÷¼Á£¬×¨Ë¶ +7 moser233 2026-04-10 8/400 2026-04-11 08:52 by Öí»á·É
[¿¼ÑÐ] 263ÄÜÔ´¶¯Á¦×¨Ë¶Çóµ÷¼Á +3 ¼Ó´óºÅ·¹ºÐ´ü 2026-04-10 3/150 2026-04-10 22:23 by 286640313
[¿¼ÑÐ] 284Çóµ÷¼Á +9 ÈÃÎÒÉϰ¶°É°¢Î÷ 2026-04-09 11/550 2026-04-10 19:18 by ¾¸jing
[¿¼ÑÐ] 0858Çóµ÷¼Á 5+5 Gky09300550£¬ 2026-04-10 8/400 2026-04-10 19:13 by chemisry
[¿¼ÑÐ] Ò»Ö¾Ô¸¿ó´ó£¬²ÄÁϹ¤³Ìר˶314·Ö£¬0856¿Éµ÷¶¼¿ÉÒÔ +15 ÎÞи¿É»÷µÄ¾ÞÈË 2026-04-09 15/750 2026-04-10 18:10 by hmn_wj
[¿¼ÑÐ] ½­ËÕ´óѧ ¹¤¿Æµ÷¼Á ¼ñ© +3 Evan_Liu 2026-04-09 5/250 2026-04-10 10:22 by Evan_Liu
[¿¼ÑÐ] 292Çóµ÷¼Á +9 ЦЦԬ 2026-04-09 9/450 2026-04-10 10:05 by LHGeng
[¿¼ÑÐ] 08¹¤Ñ§ 309·ÖÇóµ÷¼Á +6 Yin DY 2026-04-08 6/300 2026-04-10 09:18 by Delta2012
[¿¼ÑÐ] 313Çóµ÷¼Á +3 Ê®Áùʰ½ 2026-04-07 3/150 2026-04-07 23:20 by lbsjt
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û