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- Field capacity The point at which the soil contains all the water it can hold by capillary and chemical attraction. 田间持水量：土壤通过毛细作用和化学吸力可维持的全部水量。
- Female cockroaches emit a pheromone, or chemical attractant, to let males know they are ready to mate. 母蟑螂释放出一种费洛蒙，或称化学诱引剂，让公蟑螂知道她们已准备好要交配。
- Chemical attraction of fig volatiles to their pollinating fig wasps 榕果挥发物对传粉榕小蜂的吸引作用
- Chemotaxis is the directed movements of cells in response to a concentration gradient of a chemical attractant or repellent, which is important in a number of theoretical and practical fields. 摘要趋化性是细菌对多种化学物质的浓度梯度产生趋向或离避响应的行为，在许多领域中具有重要意义。
- Tending to attract electrons to form a chemical bond. 负电极的有吸引电子以形成化学键的倾向的
- 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。
- Ammonia is a chemical substance. 氨是种化学物质。
- 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 chemical compound consisting of such molecules. 二聚化合物这种聚合物形成化合物
- Relating to both physical and chemical properties. 物理和化学的与物理和化学特性均有关的
