例句
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A sensitive chromogenic reagent , 2 - ( 4 - chloro - 2 - phosphophenylazo ) - 7 - ( 2,4 - dichlorophenylazo ) - 1,8 - dihydroxy - 3,6 - naphthalene disulfonic acid ( abbreviation : DC - CPA ), has been used in the spectrophotometric determination of bismu
研究了 2- ( 4-氯 -2- 膦酸基苯偶氮 ) -7- ( 2, 4- 二氯苯偶氮 ) -1, 8-二羟基-3, 6- 萘二磺酸 ( DC -CPA ) 与铋的显色反应.
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Tetrabromobisphenol A - di ( o - chloro benzyl ) ether is a novel efficient flame retardant.
四溴双酚A - 双 ( 邻氯苄基 ) 醚是一种新型高效阻燃剂.
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Abstract: 2 - Chloro - 5 - chloromethylpyridine is an important intermediates of the pesticide and the pharmacology.
文摘: 2- 氯 -5- 氯甲基吡啶是农药和医药的重要中间体.
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At present are 2 - chloro ben - mode of destructible cover stealthily.
目前主要有2种形式可破坏显偷换盖.
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This article introduced a method for preparing α - chloro - isobutylaldehyde , in order to explore a practical chloration of oxo - compound.
本文介绍了制备氯代异丁醛的方法, 其目的在于探索羰基化合物的一种实用的氯代方法.