| 新 | 标 题 | 悬赏分 | 发贴人 | 回复/阅读 | 回复人 | 更新时间 |
 |
求Diethylene glycol dibutyl either的化学式和命名 | 3 | 2002026013 | 2/535 | 2002026013 | 2008-09-22 17:13:10 |
| |
水中含有重金属离子浓度的国家标准是多少 | 3 | 2002026013 | 3/1192 | 2002026013 | 2008-09-19 15:00:00 |
| |
pH计校不到缓冲溶液的pH值 | 3 | 2002026013 | 6/865 | 2002026013 | 2008-07-04 10:46:23 |
| |
这是哪漏气 | 3 | 2002026013 | 6/887 | xxr | 2008-01-06 14:32:49 |
| |
文献代查一篇 | 3 | 2002026013 | 2/451 | 2002026013 | 2007-12-24 14:57:04 |
| |
文献求助3篇 | 3 | 2002026013 | 4/468 | 2002026013 | 2007-12-20 08:20:57 |
| |
文献求助3篇 | 3 | 2002026013 | 2/473 | 2002026013 | 2007-12-19 11:00:30 |
| |
求助文献题目为：U(VI) adsorption on natural iron-coated sands: comparison of approaches for modeling adsorption on heterogeneous environmental materials | 3 | 2002026013 | 2/397 | 2002026013 | 2007-12-17 12:14:08 |
| |
文献求助3篇 | 3 | 2002026013 | 2/445 | 2002026013 | 2007-12-17 09:01:18 |
| |
文献求助3篇 | 3 | 2002026013 | 4/277 | 2002026013 | 2007-12-17 09:01:03 |
| |
文献求助1篇加三分 | 3 | 2002026013 | 2/471 | 2002026013 | 2007-12-14 15:12:09 |
| |
文献求助3篇 | 3 | 2002026013 | 2/600 | 2002026013 | 2007-12-13 09:53:19 |
| |
求最早关于吸附的文章 | 3 | 2002026013 | 4/604 | 2002026013 | 2007-12-09 17:43:56 |
| |
如何控制氮气流量 | 3 | 2002026013 | 9/936 | xuexue双鱼 | 2007-11-16 11:20:32 |
| |
粉末样品吸附水后红外峰有多大 | 3 | 2002026013 | 6/1127 | beautyli | 2007-10-25 00:03:50 |
| |
求红外波普图 | 3 | 2002026013 | 4/650 | 2002026013 | 2007-10-23 08:10:16 |
| |
如何防止CO2进入 | 3 | 2002026013 | 9/751 | taxiangzk | 2007-10-08 19:25:01 |
| |
NaOH溶液能产生多少Na2CO3 | 3 | 2002026013 | 5/667 | 2002026013 | 2007-09-21 12:20:01 |
| |
加热蒸馏水再冷却，用什么容器 | 3 | 2002026013 | 9/1011 | 2002026013 | 2007-09-20 10:31:04 |