发布于：2025-07-06 06:12浏览量：140文/优校网
1.【化】表面活化剂
1.an agent that reduces the surface tension of liquids so that the liquid spreads out, rather than collecting in droplets, e.g. a detergent or a drug
2.a surface-active lipoprotein substance secreted naturally in the lungs, lack of which causes respiratory problems especially in premature babies