| 单词 | normal state |
| 释义 | > as lemmasnormal state normal state n. Physics (a) = ground state n. at ground n. Compounds 2a; (b) see sense A. 13a. ΚΠ 1914 N. Bohr in London, Edinb., & Dublin Philos. Mag. 6th Ser. 27 509 For n = 1, corresponding to the normal state of the atom, we get [etc.]. 1952 R. W. Ditchburn Light xvii. 550 The atom very quickly makes a transition back to the normal state re-emitting the radiation. 1989 A. C. Davies Sci. & Pract. Welding (ed. 9) I. i. 2 An atom in its normal state is electrically neutral. normal state a. Relating to or characteristic of a superconducting substance that is not in the superconducting state. Frequently in normal state. ΘΚΠ the world > matter > physics > solid state physics > superconductivity > [adjective] > not in superconducting state normal1927 quenched1946 Peierls1969 1927 Nature 3 Dec. 818/2 The resistance became normal at a certain critical value of the magnetic field. 1938 D. Shoenberg Superconductivity i. 4 Apart from the loss of resistance the metal appeared to have identical properties both in the superconducting and normal states. 1955 H. B. G. Casimir in W. Pauli Niels Bohr & Devel. Physics 119 The theory describing the normal state when the absolute temperature tends towards zero is extremely simple. 1978 H. M. Rosenberg Solid State (ed. 2) xiv. 241 When Bext reaches ½Bc the field at AA′ attains the critical value and parts of the specimen will go normal. 1993 Nature 7 Jan. 54/1 The superconducting transition temperature, Tc, defines the point at which the free energies of the superconducting and normal states of a material become equal. < as lemmas |
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