chemical structure of coal

• 煤的化学结构

chemical structure of coal的用法和样例：

例句

1. It is the chemical structure of water that makes it an excellent medium for life.
   是水的化学结构使它成为绝佳的生命存在的介质。
2. The Turkish group studied the chemical structure of leaves from the plant called the sacred lotus.
   土耳其研究小组研究了睡莲叶的化学结构。