Znn3bq.jpeg
²é¿´: 665  |  »Ø¸´: 4
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£

ÇàÃ¹ËØ

ľ³æ (ÕýʽдÊÖ)

[½»Á÷] [ÇóÖú]silica sulfuric acidµÄ»¯Ñ§Ê½ÊÇʲô£¿

¸÷λ³æÓÑ£ºÎÒÔÚ°Ù¶ÈÉÏÕÒsilica sulfuric acidµÄÈ·ÇеÄÖÐÎÄ·­ÒëÊÇʲô£¿¿ÉϧûÓÐÕÒµ½×¼È·µÄ·­Ò룬Çë¸ßÊÖÖ¸µã£¡Ð»Ð»
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

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

jason168

ÖÁ×ðľ³æ (ÎÄ̳¾«Ó¢)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
ľÓöµ½¹ý£¬²»ÖªµÀ£¬ÆÚ´ý
life is a kind of mood.
2Â¥2009-05-30 09:11:56
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

kmd2005

ľ³æ (ÖøÃûдÊÖ)

ɱ³æÉ²

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
ºÜרҵµÄ¶«Î÷£¬×Ðϸ²éÁ˲飬¶à´¦¶¼³öÏÖ£¬µ«²»Çå³þ׼ȷ·­ÒëÓ¦¸ÃÊÇʲô£¬»¹ÊÇÇë´ÓÊÂÕâ¸öרҵµÄ³æÓÑÃǸø³öרҵµÄ»Ø´ð°É£¬ÆÚ´ýÖÐ...
ÌìºÜÀ¶``
3Â¥2009-05-30 10:35:15
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

longhua7085

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

¡ï ¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
chemcccc(½ð±Ò+1,VIP+0):thx 5-30 20:36
ÎÒ°ïÄã²éÁËÏÂ
¹è½º¸ºÔØÁòËá £¬×÷´ß»¯¼ÁÓõÄ
4Â¥2009-05-30 11:16:49
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

longhua7085

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

¡ï ¡ï
dfq0730(½ð±Ò+2,VIP+0): 9-25 15:54
Silica sulfuric acid in which sulfuric acid is immobilized on the surface of silica gel via covalent bond has been proved to be green catalyst
ÁòËáͨ¹ý¹²¼Û¼ü¹Ì¶¨Ôڹ轺±íÃæ£¬ÊÇÒ»ÖÖÂÌÉ«´ß»¯¼Á
5Â¥2009-05-30 11:19:19
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ ÇàÃ¹ËØ µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ÊÕµ½¸´ÊÔµ÷¼Áµ«ÊÇÈ¥²»ÁË +8 СÎÏÅ£* 2026-04-16 8/400 2026-04-18 11:15 by zixin2025
[¿¼ÑÐ] 260Çóµ÷¼Á +4 Zyt1314520.. 2026-04-17 5/250 2026-04-18 08:28 by babysonlkd
[¿¼ÑÐ] ¼±Ðèµ÷¼Á +9 ¾ø²»·ÅÆú22 2026-04-15 10/500 2026-04-18 08:09 by chixmc
[¿¼ÑÐ] 294Çóµ÷¼Á +7 µ­È»654321 2026-04-17 8/400 2026-04-17 16:36 by wutongshun
[¿¼ÑÐ] 0854Çóµ÷¼Á +21 ÃÅ·ÃþÃþ 2026-04-15 25/1250 2026-04-17 15:45 by qzxyhcsy
[¿¼ÑÐ] 279Çóµ÷¼Á +13 ÕÅ·¬ÇѲ»³´µ° 2026-04-11 13/650 2026-04-17 10:38 by cuisz
[»ù½ðÉêÇë] RY£ºÖйú²ú³öµÄ¿ÆÑ§À¬»øÂÛÎÄ£¬¾ø¶ÔÊýÁ¿ºÍ±ÈÀý¶¼ÊÀ½çµÚÒ» +7 zju2000 2026-04-14 18/900 2026-04-16 11:36 by »¶ÀÖËÌÒ¶Ýè
[¿¼ÑÐ] ҩѧÇóµ÷¼Á +14 à¶¹þ¼ÓÓÍ 2026-04-14 16/800 2026-04-16 10:15 by beilsong20
[¿¼ÑÐ] Çóµ÷¼ÁÍÆ¼ö +8 СÄô°®Ñ§Ï° 2026-04-14 8/400 2026-04-16 07:22 by ѧԱJpLReM
[¿¼ÑÐ] 297£¬¹¤¿Æµ÷¼Á? +10 ºÓÄÏũҵ´óѧ-ÄÜ 2026-04-14 10/500 2026-04-15 21:50 by noqvsozv
[¿¼ÑÐ] ÉúÎïѧµ÷¼Á +9 Ö½ÉÈzhishan 2026-04-13 9/450 2026-04-15 18:28 by ANÁ÷800
[¿¼ÑÐ] 085801µçÆø×¨Ë¶272Çóµ÷¼Á +19 µçÆøÀî 2026-04-13 21/1050 2026-04-15 13:37 by ºÚ¿Æ¼¼¿óÒµ
[¿¼ÑÐ] 297¹¤¿Æµ÷¼Á? +14 ºÓÄÏũҵ´óѧ-ÄÜ 2026-04-13 15/750 2026-04-15 13:25 by ºÚ¿Æ¼¼¿óÒµ
[¿¼ÑÐ] ¸÷λÀÏʦºÃ£¬Çóµ÷¼Á£¬±¾¿Æ211£¬Ò»Ö¾Ô¸Ìì½ò´óѧÉúÎïÓëҽҩѧ˶£¬²îÁ½Ãû¼ȡ¡£ +11 ·ÁùÁùjjj 2026-04-13 11/550 2026-04-14 16:01 by zs92450
[¿¼ÑÐ] µ÷¼Á +12 ÔÂ@163.com 2026-04-11 12/600 2026-04-14 15:37 by zs92450
[¿¼ÑÐ] 085408¹âµçÐÅÏ¢¹¤³Ìר˶355Ò»Ö¾Ô¸³¤´º¹â»úËùµ÷¼Á +6 Íõymaa 2026-04-13 13/650 2026-04-14 11:33 by Íõymaa
[¿¼ÑÐ] Çóµ÷¼Á +3 ÎÒ°®¸ßÊý¸ßÊý°®Î 2026-04-12 3/150 2026-04-14 01:00 by Íõ¬Bè±
[¿¼ÑÐ] 339Çóµ÷¼Á +4 hanwudada 2026-04-12 4/200 2026-04-13 12:03 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 344 ²ÄÁÏרҵ Çóµ÷¼Á211 ÎÞµØÓòÒªÇó +8 hualkop 2026-04-11 8/400 2026-04-12 22:24 by fqwang
[¿¼ÑÐ] µ÷¼Á½áÊø +6 floriea 2026-04-12 8/400 2026-04-12 18:13 by zhouxiaoyu
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û