Compared with hidepowder method, colloidal titration has the advantages of rapidity, (simplicity,) and...
与皮粉法相比，胶体滴定具有快速、简便、样品用量少的特点。
2
Peptones and their derivatives; other protein substances and their derivatives, not else - where specified or included; hidepowder, whether or not chromed.
蛋白胨及其衍生物；其他税目未列名的蛋白质及其洐生物；皮粉，不论是否加入铬矾。
3
In this article the history of manufacture and development for hidepowder in China, main points of its processing technique and Suggestions for improvement are introduced.