This product is the main ingredient is chitin, L-carnitine, organic chromium, a variety of vitamins and trace elements in applying the latest science and technology from developed.
本产品主要成份是甲壳素，左旋肉碱，有机铬，多种维生素和微量元素，运用最新科学技术研制而成。
This treatise starts with the analysis of key elements of evaluation system of product design, and then I expound the main contents of the theory of this system.
本文首先以设计评估相关要素的分析入手，阐述当前产品设计评估体系的主要内容。
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