| 单词 | tube counter |
| 释义 | > as lemmastube counter tube counter n. Physics the now usual form of Geiger counter, as contrasted with the point-counter. ΘΚΠ the world > matter > physics > atomic nucleus > measurement of ionizing radiation > [noun] > instrument for counting or recording counter1924 point-counter1925 tube counter1930 radiation counter1934 ratemeter1941 1930 Physical Rev. 35 652/1 Automatic recording of the amount of the penetrating radiation coming from particular areas of the sky, using two tube-counters and a special ‘coincidence circuit’. 1938 R. W. Lawson tr. G. von Hevesy & F. A. Paneth Man. Radioactivity (ed. 2) i. 17 We shall only discuss the two [counters] that are most important.., viz. the point-counter and the tube-counter, both of which were introduced by Geiger. < as lemmas |
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