It was illustrated by physical chemistry experiment.

以物理化学实验为例说明之。

We can divide physical chemistry into four main areas.

我们可将物理化学划分为四个主要领域。

My son is studying physical chemistry but it's all Greek to me.

我儿子正研究物理化学，但我对此一窍不通。

The physical chemistry properties of the vinylon-milk fiber was tested.

测试了维纶基牛奶蛋白纤维的理化性能；

Physical chemistry experiment is one of the basic courses in Normal College.

物理化学实验是师范院校化学系的基础课程。