- 灵活性 línghuóxìng flexibilityThe quality of being flexible or adaptable; the ability to change according to circumstances rather than sticking to rigid rules.
- 活性炭 huóxìngtàn activated carbonA highly porous form of carbon with strong absorbing properties used in industry, medicine, and gas masks; produced by burning wood, shells, or bone at high temperatures
- 活性碳 huóxìngtàn activated carbonhighly porous carbon processed to have high adsorption properties; used for filtration, purification, and in gas masks
- 活性氧类 huóxìngyǎnglèi reactive oxygen speciesreactive oxygen species; activated oxygen species; chemicals such as peroxides and free radicals that are highly reactive
- 活性剂 huóxìngjì reagent, activatorsubstance that participates in a chemical reaction or increases the activity of a catalyst or other substance
- 界面活性剂 jièmiànhuóxìngjì surfactantA substance that reduces surface tension, such as a detergent, emulsifier, or foaming agent; soap is a common example.
- 表面活性剂 biǎomiànhuóxìngjì surfactantA substance that reduces the surface tension of a liquid; commonly used as a detergent, emulsifier, or foaming agent.