streams of positive ions which are produced in a high-vacuum discharge tube and move towards the cathode, some of them passing through openings in it…
| 单词 | θ79363 |
| 释义 | the world > matter > physics > atomic nucleus > radioactivity > ionizing radiation > [noun] > rays penetrating cathode (1) canal rays1897 streams of positive ions which are produced in a high-vacuum discharge tube and move towards the cathode, some of them passing through openings in it… |
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