The silkworm chrysalis skin is a kind of waste after removing pupa oil and protein.

蚕蛹皮是蚕蛹(制丝下脚料)经人工提炼去蛹油、蛹蛋白后的废弃物,含有丰富的甲壳质.

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This paper researches technological conditions under which the D - glucosamine hydrochloride prepared from chitin by acidic hydrolysis.

方法先由龙虾壳制备甲壳质,经盐酸水解得D氨基葡萄糖盐酸盐.

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The outermost layer of cuticle of an arthropod exoskeleton, composed mostly of wax.

主要为水生的节肢动物,通常身体分节并有壳质的外骨骼.

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Effect of petrographic composition on coal spontaneous combustion has been studied in this report.

本文研究煤岩成分对煤炭自燃的影响,认为镜质组自燃,壳质组和惰性组不易自燃.

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