The new modulator adopts the balance AM technique of FET double defference, and has a automatic level control circuit, a automatic level protective circuit and voltage controlled phase-locking oscillation circuit.是什么意思_The new modulator adopts the balance AM technique of FET double defference, and has a automatic level control circuit, a automatic level protective circuit and voltage controlled phase-locking oscillation circuit.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句