丝类是一种纤维蛋白，由蜘蛛或者桑蚕和某些昆虫的腺体所产生。
Silk is a fibrous protein, produced in glands within the spider or silkworm and some insects.
科学家发现鲨鱼体内含有大量的类蛋白胶原纤维。
Scientists find in its body the shark has a large amount of albuminoid collagenous fiber.
七大营养元素、矿物质、脂类、蛋白质、维生素、碳水化合物、水和膳食纤维，对人体都有自我的独特的功能。
The seven major nutrient elements, minerals, lipid, protein, vitamins, carbohydrates, dietary fiber and water, all have their own unique functions to human body .
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