Collagen is one of the important and polyfunctional protein from pig skin.

胶原蛋白是猪皮中含量较高，活性较为重要的一种蛋白质。

The temperature field and velocity field in a polyfunctional hall with floor air supply was measured.

实测了采用下送风空调方式的某多功能厅的温度场和速度场。

Objective: To extract keratin of donkey skin for the preparation of colla corii Asini by polyfunctional extraction apparatus.

目的：采用多功能提取罐对阿胶制作时驴皮胶朊蛋白质进行提取。

But for the polyfunctional tructures, they could increase the interaction or tanning agent and collagen, and improve the quality of…

将这两种助剂搭配使用，可以生产出高质量的鞋面革和服装革。

The synthesis, properties, modification and application of polybenzoxazines were reviewed. Besides, the other difunctional benzoxazines and polyfunctional naphthoxazines were also discussed.

综合介绍了苯并嗪树脂的合成、性能、改性和应用，并对其他双酚类苯并嗪和萘并嗪进行了概述。