这个词是什么意思？
A linear polysaccharide of beta-1->4 linked units of ACETYLGLUCOSAMINE. It is the second most abundant biopolymer on earth, found especially in INSECTS and FUNGI. When deacetylated it is called CHITOSAN.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D002686 · MeSH 2026。
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