简介超短波电疗机是利用超短波的高频电能作用于人的肌体进行治疗的仪器。
Ultrashort wave Electrotherapy Machine is an instrument which utilizes high frequency electric energy of ultrashort wave to act on human's organism for treatment.
高频信道的变参性以及时间弥散特性严重影响短波数据传输的性能。
The performance of HF data transmission systems is badly constrained by the HF channels what are characterized by the rapid time variation and dispersion.
高频雷达工作在十分拥挤的短波波段内，可资用的能满足信号调制的连续频带很难获得。
Operating in the heavy congested SW band, it is difficult for HFradars to find continuously useable waveband for signal modulation.
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