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- measuring chemical traits 测定化学特性
- physical and chemical traits of soil 土壤理化性状
- Soil physical and chemical traits 土壤理化性质
- This paper discusses in detail that coulometry quickly measures chemical oxygen demand of low polluted domestic sewage of the school and high polluted industrial sewage. 本文详细论述了库仑法快速测定低污染的校区生活污水和高污染的工业污水中的化学耗氧量。
- A reactor is a container for chemical reaction. 反应器是进行化学反应的容器。
- The chemical symbol for copper is "Cu". 铜的化学符号是Cu。
- We are doing a chemical experiment. 我们正在做化学实验。
- My major is the subject of chemical engineering. 我的专业是化学工程学。
- Not measuring up to standards or expectations. 不合格的与标准或期望不符合的
- Ammonia is a chemical substance. 氨是种化学物质。
- An apparatus for measuring gases. 气体贮存计量器用来测量气体的一种工具
- A chemical derived from petroleum or natural gas. 石油化学制品从石油或天然气中提炼出的化学产品
- Beware how you handle the toxic chemical. 小心处理有毒的化学药品。
- The chemical can behave as an acid. 这种化学制品能起酸的作用。
- Some chemical compounds can be resolved by heat. 一些化学化合物可以通过加热分解。
- I am not familiar with chemical terms. 我不熟悉化学术语。
- He devoted his life to chemical research. 他一生从事化学研究。
- He is experimenting with a new chemical. 他正在实验一种新的化学制品。
- The two elements are synthesized by a chemical process. 这两种元素已经化学合成。
- A single unit, as in counting, rating, or measuring. 单位一种单位，如计数、测试或测量中所用的单位
