| 释义 |
> as lemmasdisplacement law displacement law n. any of three laws in Physics: (a) that the wavelength at which a black body radiates most energy is inversely proportional to its absolute temperature; (b) (see quot. 1922); (c) that when an atom emits an alpha particle its atomic number decreases by two, and when it emits a beta particle its atomic number increases by one.< |