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| 新 |
标 题 |
悬赏分 |
发贴人 |
回复/阅读 |
回复人 |
更新时间 |
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WO是代表国际专利吗？ | 3 |
zlb882001 |
4/4205 |
zlb882001 |
2008-01-04 08:54:03 |
| |
新药的界定 | 3 |
zlb882001 |
7/876 |
admin |
2007-12-27 17:37:50 |
| |
三乙胺如何除水？ | 3 |
lisijun333 |
8/3832 |
rachelfu |
2007-12-21 10:42:53 |
| |
耐热碱的管道 | 3 |
leong_s |
13/935 |
bobfei |
2007-12-17 13:56:59 |
| |
各位兄弟姐妹，帮帮忙 | 3 |
selfliubb |
7/867 |
hittler123 |
2007-12-10 09:52:29 |
| |
关于苯基锂的几个疑问 | 3 |
沧海一声笑 |
10/2650 |
tangyyer |
2007-12-08 15:07:42 |
| |
溶剂的除水 | 3 |
liuyanlin2 |
8/2696 |
liuyanlin2 |
2007-12-07 13:40:08 |
| |
分水器应该如何安装？ | 3 |
zlb882001 |
6/1371 |
zlb882001 |
2007-12-03 08:52:19 |
| |
求助：α-溴代苯乙烷的合成工艺？ | 3 |
sven |
5/955 |
sven |
2007-11-25 20:59:59 |
| |
关于环戊二烯钠 | 3 |
yuzaipiao |
5/1374 |
wuxjem |
2007-11-16 20:18:33 |
| |
急!求教过滤问题 | 3 |
sunweifeng |
10/905 |
sunweifeng |
2007-11-13 09:01:46 |
| |
[求助] 中速滤纸滤不掉无水硫酸钠 | 3 |
颖子 |
6/1017 |
颖子 |
2007-11-10 22:13:36 |
| |
HMPA/HMPT | 3 |
lalasgr |
4/1132 |
wukuiwang |
2007-11-08 22:13:06 |
| |
与水不混溶的极性较大的溶剂有哪些？ | 3 |
jeff |
11/1363 |
jeff |
2007-11-07 16:39:07 |
| |
烟酸酰胺的合成 | 3 |
zfdlrzda |
3/704 |
zfdlrzda |
2007-11-05 21:25:24 |
| |
紧急:制备36-38%的HCL乙醇的问题. | 3 |
zitou3 |
9/1718 |
zitou3 |
2007-11-05 14:01:27 |
| |
制备HCL乙醇的问题. | 3 |
zitou3 |
4/916 |
zitou3 |
2007-11-03 14:13:12 |
| |
用THF做溶剂长时间反应如何防止其挥发？ | 3 |
lisijun333 |
8/912 |
wzhahass |
2007-10-17 20:16:07 |
| |
关于氯气干燥器的设计问题，请大家多多关照 | 3 |
jidanhun |
11/1081 |
jidanhun |
2007-09-26 13:12:27 |
| |
物质不易溶于溶剂，如何过柱子？ | 3 |
sara |
13/1862 |
sara |
2007-09-20 05:30:07 |
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