【答案】应助回帖

11楼2015-03-28 19:59:10

cloudtop

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10楼: Originally posted by peterflyer at 2015-03-28 19:30:58
This research is aiming to develop a method for the determination of the impurities that have not been published before, so that that these impurities may no longer be easily introduced into the d ...

你这是唯心主义啊。杂质是客观存在的，不以人的意志为转移，不是说建立了检测方法这些杂质就不会存在了

12楼2015-03-28 20:50:04

田沐125

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【答案】应助回帖

感谢参与，应助指数 +1

有点乱，非专业的估计会不知道你那个非限制性定语从句修饰谁的！

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13楼2015-03-28 22:39:27

mac194

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【答案】应助回帖

★ ★
感谢参与，应助指数 +1
cloudtop: 金币+2 2015-03-31 08:47:37

Research  is ( 或 Efforts are ) underway to develop novel detection  ( 或 analytical ) methods for ascertaining the purity of [any] drug
  ---
never been reported before = hitherto unreported = novel
1 impurity -> 1 detection method    impurities -> methods

14楼2015-03-31 04:42:38

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一个句子可以有两个定语从句啊，英语有主谓宾，主语和宾语是名词时都可以用从句来修饰，但你这句应该错了吧，一个词语应该是不能有两个定语从句来修饰的，，你只要稍微改一下就好了。This research is aiming to develop a method for the determination of the impurities that have never been reported before and it can be easily introduced into the drug.