the cathode and its surrounding assembly that emits, controls, and focuseds a stream of electrons to produce a beam of desired size, e.g. in a cathode-ray tube
| 单词 | electron gun |
| 释义 | electron gunnounthe cathode and its surrounding assembly that emits, controls, and focuseds a stream of electrons to produce a beam of desired size, e.g. in a cathode-ray tube |
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