空气倍增器技术用循环放大器，来替换扇叶和栅格，并且通过一个混流式叶轮把空气吸入底座。
The air Multiplier technology replaces blades and grilles with loop amplifiers and draws air in at the base through a mixed flow impeller.
该文给出了一种三段式互作用结构谐波倍增回旋行波管放大器互作用电路的理论设计过程。
In this paper, the design procedure of a harmonic multiplying Gyro-TWT with three stage interaction circuits is presented.
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