rate of movement的用法和样例：
例句
- A method of separating substances, especially proteins, and analyzing molecular structure based on the rate of movement of each component in a colloidal suspension while under the influence of an electric field.
电泳分离法分离物质，尤指分离蛋白质的方法，以及基于在电场作用下处于胶粒悬浮状态的各个成分的运动速度基础上进行的分子结构分析方法
