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一未知结构的多糖，经完全甲基化和水解。
A polysaccharide of unknown structure was isolated, subjected to exhaustive methylation, and hydrolyzed.
youdao
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一未知结构的多糖，经完全甲基化和水解。
A polysaccharide of unknown structure was isolated, subjected to exhaustive methylation, and hydrolyzed.
youdao