词汇	hf high frequency
释义	hf high frequency 高频
随便看	telephone plug telephone plug, concentric, three-pole telephone plug, concentric, two-pole telephone plugs telephone pole telephone-pole design telephone recording telephone recording attachment telephone recording control telephone recording statement telephone reference circuit telephone reference service telephone region telephone regulation telephone regulator telephone relation telephone relay telephone poles telephone poll telephone preprocessor telephone primary center telephone private branch exchange Telephone Private Lines telephone processor complex Telephone protector