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关注：1
2013-05-23 12:21
求翻译：HDDA分子链两端各有一个酯基和一个双键,中间有四个亚甲基相互连接，是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
HDDA分子链两端各有一个酯基和一个双键,中间有四个亚甲基相互连接，
问题补充： |
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2013-05-23 12:21:38
正在翻译，请等待...
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2013-05-23 12:23:18
HDDA elements each end of the chain with a urethane base and a two-button, the middle 4 methylene connected to each other.
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2013-05-23 12:24:58
The HDDA member chain both sides have an ester base and a duplet bond respectively, middle has four methyl radicals to connect mutually,
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2013-05-23 12:26:38
HDDA chains at each end there is an ester and a double bond, has four methylene connected in the Middle,
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2013-05-23 12:28:18
正在翻译，请等待...
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