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Synthesis of ethyl iso nicotinate using BTEAC (benzyl triethyl ammonium chloride) as phase transfer catalyst was studied.

以BTEAC(苄基三乙基)相转移催剂合成了烟酸乙酯。

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Methyl 1 phenyl Propanone was synthesized with benzene and iso butyryl chloride by using anhydrous aluminium trichloride as catalyst.

由苯与无水三铝作催剂的条件下制备苯基丙基酮。

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Egeria, egest, egesta, egestion, EGF, egg, egg beater, egg cream, egg laying, egg shell,

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3G, 401(K), a,

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冷知识百科大全

ISO standards are not free, and they're not even cheap.

ISO 标准不是, 而且价格也不宜。

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TED演讲(视频版) 20238

And once again, I go online, and I teach myself about ISO and aperture on YouTube.

我再次上​​网,在 YouTube 上自学 ISO 和光圈。

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eggcup, egg-eating, egged, egger, Eggers, egg-flip, egg-globulin, egghead, egg-head, eggheaded,

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3G, 401(K), a,
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