英语语法分析

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。