新 | 标 题 | 悬赏分 | 发贴人 | 回复/阅读 | 回复人 | 更新时间 |
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三苯基氯甲烷合成 | 3 | david_zhan | 3/1077 | xiaoyaolcl | 2008-07-27 09:54:17 |
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壬二酸和壬酸 | 3 | david_zhan | 3/834 | wangcl1969 | 2008-07-27 08:28:24 |
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关于旋转薄膜蒸发器 | 3 | david_zhan | 9/1166 | wangcl1969 | 2008-07-27 08:25:38 |
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5%Pt/C 催化剂如何制备? | 3 | david_zhan | 11/1670 | 中国饺子 | 2008-06-08 11:34:32 |
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大家对环保问题怎么看? | david_zhan | 39/2211 | ztdztd2008 | 2008-05-30 11:33:35 | |
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谁有《石油化工装置工艺包(成套技术工艺包)内容规定》? | 3 | david_zhan | 2/784 | david_zhan | 2007-09-07 09:14:15 |
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关于甲基磺草酮 | 3 | david_zhan | 9/2313 | zxinchang | 2007-08-02 11:51:38 |
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草甘膦制剂的重量体积浓度,重量重量浓度如何换算? | 3 | david_zhan | 3/2091 | david_zhan | 2007-07-30 13:43:56 |
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金都尔合成 | 3 | david_zhan | 7/1839 | david_zhan | 2007-07-11 08:53:02 |
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谁能帮助查一下cas60066-53-7的性质或MSDS资料,谢谢! | 3 | david_zhan | 3/758 | 危险品运输专家 | 2007-07-03 11:45:53 |
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该用什么催化剂? | 3 | david_zhan | 4/1557 | huangma | 2007-06-30 14:11:20 |
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资料检索,免费注册 | david_zhan | 11/1545 | 大菠萝 | 2007-04-03 17:22:33 | |
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求解草酮合成专利或文献资料! | 3 | david_zhan | 3/1114 | david_zhan | 2006-08-15 12:19:20 |
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如何提高氯甲基乙基醚的质量? | 3 | david_zhan | 4/962 | david_zhan | 2006-08-09 08:41:48 |
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免费注册,送100元检索费 | david_zhan | 25/1249 | txxnr | 2006-06-03 21:54:38 | |
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氟噻草胺合成文献 | 3 | david_zhan | 6/1183 | david_zhan | 2006-06-02 12:01:33 |
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求PDG格式文件阅览器 | 3 | david_zhan | 3/9846 | david_zhan | 2006-05-16 21:24:07 |
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氯乙酰氯分析方法 | 3 | david_zhan | 4/1199 | david_zhan | 2006-03-10 10:43:31 |