Objective The establishment carbonizes - the acid in the solution determination Chinese chestnut � � s lead, thecadmium content.目的:建立碳化 - 酸溶消解法测定板栗中的铅 、 镉含量的方法....
Woollen cloth and timber were sent to Egypt in exchange for linen or papyrus.羊毛料和木材送到埃及以换取亚麻布或纸莎草纸.The Egyptians wrote on papyrus.埃及人书写用薄草纸.Since papyrus dries up and crumble, very few documents of ancient Egypt have sur...