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The structures and compositions of castor oil and its ethoxylate derivative have been characterized by means of NMR and IR spectroscopy and MS spectrometry.
用核磁共振波谱、质谱和红外光谱表征了蓖麻油和非离子表面活性剂聚氧乙基蓖麻油的结构特征和它们的组成。
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