| 单词 | medium-frequency tube |
| 释义 | medium-frequency tube [`mē·dē·ǝm ¦frē·kwǝn·sē ´tüb] ELECTRONICS An electron tube operated at frequencies between 300 and 3000 kilohertz, at which the transit time of an electron between electrodes is much smaller than the period of oscillation of the voltage. |
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