| 单词 | physical constant |
| 释义 | > as lemmasphysical constant physical constant n. (Science) a quantity expressing some fundamental physical phenomenon or property that is generally regarded as invariant with respect to space and time; (also figurative) something regarded as ever-present or unvarying.The speed of light in a vacuum and the universal gravitational constant are two of the most well-known examples of physical constants. ΚΠ 1833 Rep. 1st & 2nd Meetings Brit. Assoc. Advancem. Sci. 1831–2 318 The determination of the physical data (or the physical constants, as Mr. Babbage calls them). 1990 Washington Post (Nexis) 26 June a21 Most people regard this situation as unchangeable. They mistake a Cold War artifact for a physical constant of the nuclear age. 2010 W. C. K. Poon in R. M. Lynden-Bell et al. Water & Life xix. 291 Our understanding now permits us to imagine universes with different fundamental laws or physical constants. < as lemmas |
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