The technique has been to mutate the genes by irradiation or chemicals

Protective gloves reduce the absorption of chemicals through the skin

防护手套可以减少皮肤对化学物质的吸收。

We have literally altered the chemistry of our planet's atmosphere

我们确实改变了地球大气层的化学构成。

The raw sewage is chemically treated.

未经处理的污水要进行化学处理。

She studied chemistry for three years.

她学了三年化学。

You must be careful when handling chemicals.

接触化学药品必须小心谨慎。

What is the chemical symbol for copper?

铜的化学符号是什么？

Perfume interacts with the skin's natural chemicals.

香水和皮肤的天然化学物质相互作用。

I'm doing physics, biology and chemistry.

我在学物理、生物和化学。

The chemicals pose little risk to human health.

这些化学药品对人类健康没有什么危害。

Chemicals are injected into the fruit to reduce decay.

水果注入了化学药品以防腐坏。

This chemical has a wide range of industrial uses.

这种化学制品在工业上用途广泛。

The fruit is injected with chemicals to reduce decay.

水果注入了化学药品以防腐坏。

She has a degree in Biochemistry from London University.

她有伦敦大学生物化学的学位。

You can ask for a chemical analysis of your tap water.

你可以要求给你的自来水做化学分析。

The country has not forsworn the use of chemical weapons.

该国并未保证禁用化学武器。

Our eyes were burning from the chemicals in the air.

空气中弥漫的化学物质熏得我们的眼睛火辣辣地痛。

A ban was imposed on the use of chemical weapons.

化学武器已被禁止使用。

The factory was fined for discharging chemicals into the river.

这家工厂因往河里排放化学物质而被罚款。

The patient's blood chemistry was monitored regularly.

那名患者的血液化学成分受到了定时的监测。

I'm hoping to do a chemistry degree.

我希望攻读化学学位课程。