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关注：1
2013-05-23 12:21
求翻译：Monomers, methyl methacrylate (MMA) and styrene, were obtained from Aldrich and were filtered through neutral alumina (70–230 mesh), fractionally distilled under reduced pressure, and redistilled under reduced pressureimmediately before use是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
Monomers, methyl methacrylate (MMA) and styrene, were obtained from Aldrich and were filtered through neutral alumina (70–230 mesh), fractionally distilled under reduced pressure, and redistilled under reduced pressureimmediately before use
问题补充： |
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2013-05-23 12:21:38
单体，甲基丙烯酸甲酯（MMA）和苯乙烯，从Aldrich获得，并通过中性氧化铝（70-230目）过滤，在减压下分馏，并根据pressureimmediately使用前减压重蒸
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2013-05-23 12:23:18
正在翻译，请等待...
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2013-05-23 12:24:58
单体，甲醇异丁烯酸 (MMA) 和苯乙烯，从Aldrich得到了和过滤通过中立铝土 (70-230滤网)，在减压下分数被蒸馏，并且redistilled在用途之前减少之下pressureimmediately
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2013-05-23 12:26:38
正在翻译，请等待...
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2013-05-23 12:28:18
单体，木精 methacrylate(MMA) 和 styrene，从 Aldrich 被获取和通过中性的氧化铝被过滤 (70-230 网格 )，部分地蒸馏在被减少的压力下，重新蒸馏不到 pressureimmediately 减少在使用之前
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