| 单词 | Particles,Beta |
| 释义 | Particles,Beta《英文msh词典》Particles,Beta [入口词] Particles,Beta [主题词] Beta Rays [英文释义] A stream of positive or negative electrons ejected with high energy from a disintegrating atomic nucleus; most biomedically used isotopes emit negative particles (electrons or negatrons,rather than positrons). Cathode rays are low-energy negative electrons produced in cathode ray tubes,also called television tubes or oscilloscopes. |
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