| 单词 | cloud track |
| 释义 | > as lemmascloud track cloud track n. the path of charged particles revealed in a cloud chamber. ΘΚΠ the world > matter > physics > atomic physics > particle physics > apparatus for detecting charged particles > [noun] > path revealed by cloud trail1912 cloud track1923 1923 C. T. R. Wilson in Proc. Royal Soc. A. 104 197 The cloud track..has been formed by the passage of a β-particle. 1938 R. W. Lawson tr. G. von Hevesy & F. A. Paneth Man. Radioactivity (ed. 2) v. 61 The tertiary electrons can be distinguished from the secondary electrons by the aid of the cloud-track method. 1938 R. W. Lawson tr. G. von Hevesy & F. A. Paneth Man. Radioactivity (ed. 2) xxv. 280 Cloud tracks which could be ascribed to the cosmic radiation were to be found naturally on only a small fraction of the Wilson photographs. < as lemmas |
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