和大部分六碳糖分子不同，木糖醇是以五碳为骨架的。
Unlike most sugar molecules which are based on a six-carbon structure, Xylitol is based on five carbon atoms.
论文分别研究了木钙、糖钙、酒石酸、焦磷酸钠和蔗糖共五种常用缓凝剂对水泥净浆凝结时间、混凝土凝结时间及强度的影响。
The effects of five common set-retarders on setting time of cement paste and concrete and strength of concrete are studied.
木糖醇是一种五碳糖醇，已被广泛应用于食品、医药和化工等领域，利用微生物发酵生产木糖醇成为目前研究热点。
Xylitol, a five carbon sugar alcohol, owing to its unique properties, began to be frequently used in food, medicine and chemical industries.
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