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- Radium is a chemical element. 镭是一种化学元素。
- Radium is a radioactive element. 镭是个放射性元素。
- Ammonia is a chemical substance. 氨是种化学物质。
- A chemical group is a submolecular group of atoms. 化学基因是亚分子的原子集团。
- Is a chemical reaction driven by light ray. 就是光线驱动的一个化学反应。
- Quentin is a chemical engineer in the oil industry. 昆亭在石油业担任化学工程师。
- In this city is a chemical works . 在这个城市里有一座化工厂。
- In this city is a chemical works. 在这个城市里有一座化工厂。
- Lead is a chemical which causes cancer. 铅是一种化学物质,导致癌症。
- Malathion is a chemical that is sprayed on crops. 马拉硫磷是一种喷洒在农作物上的化学药品。
- The hardening of cement is a chemical process. 水泥的硬化就是一个化学过程。
- Their tasting action is a chemical process, like smell. 他们的尝味作用,像嗅觉一样,是一种化学过程。
- She is a student of a chemical engineering institute. 她是化工学院的学生。
- Radium is still used today for curing cancer. 今天镭仍被用来治癌。
- Water is a fish's natural element. 水是鱼的自然栖息地。
- There is a vein of melancholy in his character. 他的性格中有少许忧郁的气质。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- I am well aware that this is a tough job. 我深知这是一件棘手的工作。
- It is a fact of life and you must face it. 这是严酷的现实,你必须面对它。
- He is a great guy, a chip off the old block. 他是一位好人,就像他父亲一样。