An investigation is also made on determining DMDAAC qualitatively by bromophenol blue test and quantitatively by tetraphenyl boron sodium precipitation reac...
用溴酚蓝对DMDAAC
行定性
，用四苯硼酸钠及折光率法行定
的方法行了探
。
An investigation is also made on determining DMDAAC qualitatively by bromophenol blue test and quantitatively by tetraphenyl boron sodium precipitation reac...
用溴酚蓝对DMDAAC行定性，用四苯硼酸钠及折光率法行定的方法行了探。
：以上例句、词性
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