单词 | vacuum-tube keying |
释义 | vacuum-tube keying [`vak·yǝm ¦tüb `kē·iŋ] ELECTRONICS Code-transmitter keying system in which a vacuum tube is connected in series with the plate supply lead of a frequency- controlling stage of the transmitter; when the key is open, the tube blocks, interrupting the plate supply to the output stage; closing the key allows the plate current to flow through the keying tube and the output tubes. |
随便看 |
科学参考收录了103327条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。