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北京石油化工学院2026年研究生招生接收调剂公告
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kimi321

金虫 (小有名气)

[求助] 求高手帮忙看这句话有没有问题,急用,在线等

These previous researches encouraged us to develop a facile method for preparation of bromoallenes under metal-free, easy operation, good yield and without toxic halogenating reagent conditions。

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yanglxz

金虫 (小有名气)

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kimi321: 金币+15, ★★★很有帮助 2012-06-19 09:30:55
These previous researches encouraged us to develop a facile method for preparation of bromoallenes, with the feathers of metal-free, easy operation, good yield and no "toxic halogenating reagent".

引号中的词组为不确定词组。
3楼2012-06-19 09:07:56
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weichin

铁杆木虫 (职业作家)

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kimi321: 金币+35, 翻译EPI+1, ★★★很有帮助 2012-06-19 09:30:49
供参考:
These previous researches encouraged us to develop a facile method for preparing bromoallenes under metal-free, easy-to-operate, good-yield and toxic-halogenating-reagent-free conditions.
That_that_is_is;_that_that_is_not_is_not.
2楼2012-06-19 09:03:09
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huaxuedu

银虫 (初入文坛)

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These previous researches encourage us to develop a new preparation method of bromoallenes under facile, metal-free, easy to operation, and none toxicity of halogenating reagent conditions.
4楼2012-06-19 09:26:31
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