| 单词 | alpha ray |
| 释义 | alpha ray in British Englishnoun ionizing radiation consisting of a stream of alpha particles alpha ray in American English a stream of alpha particles, less penetrating than a beta ray alpha ray in American Englishnoun Physics a stream of alpha particles Also called: alpha radiation Word origin [1900–05]This word is first recorded in the period 1900–05. Other words that entered Englishat around the same time include: Young Turk, burnout, hookup, hormone, throwaway |
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