audio frequency apparatus 音频设备 ; 声频设备
pulse high frequency apparatus 脉冲高频机
pulsed high frequency apparatus 脉冲高频机
radio frequency heating apparatus 射频加热装置 ; 无线电频率加热装置
audio-frequency apparatus 声频设备
low frequency therapy apparatus 低频率治疗机
The invention discloses an output controlling means of audio frequency apparatus.
本发明公开了音频设备的输出控制方法。
Medium frequency high power induction heating apparatus, for many years has adopted silicon controlled as switching devices.
中频大功率感应加热装置，多年来一直采用可控硅做为开关器件。
This paper introduces the structure and principle of a novel low-frequency electronic pulse therapeutic apparatus.
介绍了一种新型低频脉冲治疗仪的基本结构、工作原理。
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