| 单词 | surface activity |
| 释义 | > as lemmassurface activity surface activity n. (a) activity on or at a surface, superficial activity; (b) the property of a substance of being surface-active. ΘΚΠ the world > matter > chemistry > physical chemistry > liquid phase > [noun] > surface tension > a substance affecting surface activity1948 surfactant1950 1869 R. S. Foster Christian Purity i. 23 One cannot but inquiringly ask,..what the end must be. If he penetrate beneath the thin exterior crust of mere surface activity, into the discovery of hidden causes, he must [etc.]. 1896 E. J. Houston & A. E. Kennelly Electric Incandescent Lighting ix. 168 The surface activity, which determines the brightness of the filament, is a quantity altogether distinct from the total-candle-power. 1948 M. E. Parker Food-plant Sanitation xii. 288 The surface activity of wetting agents, penetrants, and detergents. 1993 M. W. Klemens Amphibians & Reptiles Connecticut iii. 42 Spotted salamanders are fossorial with surface activity limited to wet nights. 2006 H. Gecol in R. J. Farn Chem. & Technol. Surfactants ii. 26 Surface activity is achieved when the number of carbon atoms in the hydrophobic tail is higher than 8. < as lemmas |
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