“radio-frequency cavity preselector”的概念、定义、翻译、参考文献-科学参考

单词	radio-frequency cavity preselector
释义	radio-frequency cavity preselector [`rād·ē·ō ¦frē·kwǝn·sē `kav·ǝd·ē ´prē·si`lek·tǝr] ^{ELECTROMAGNETISM} A tunable cavity resonator in an ultra-high-frequency circuit, which is similar in function to a tuned resonant circuit.
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