chemical reactions that cause ozone destruction.

导致臭氧受到破坏的化学反应。

the chemical composition of the ocean.

海洋的化学成分。

soldiers exposed to chemical weapons.

暴露在化学武器下的士兵们。

The whole food chain is affected by the over-use of chemicals in agriculture.

整个食物链受到了农业中过度使用化学物质的影响。

a chemical company.

一家化学制品公司。

a spillage from a chemicals factory.

来自一个化工厂的泄漏。