a diode vacuum tube in which the flow of electrons from a central cathode to a cylindrical anode is controlled by crossed magnetic and electric fields; used mainly in microwave oscillators
magnetron的用法和樣例：
例句
用作名詞 (n.)
You must help magnetron arrange a series of metal balls in a specific pattern. 你必須幫助磁控管安排了一系列的金屬球在一個特定的模式。
Magnetron is often used as microwave power source in clinical linac magnetron. 在醫用直線加速器中通常都採用磁控管作為微波功率源。
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