英语翻译如题,a wave with a 20KHz frequency?
a wave 如题
英语翻译A quarter wave antenna with drooping quarter wave radial
1、There is a sound wave,the frequency of the wave f=440Hz,an
英语翻译A filter with a tuning frequency more than 10% below the
英语翻译The music blared with a calming frequency.The speakers g
英语翻译What is the frequency of the square wave?
英语翻译It's natural to greet friends with a smile and a wave.Wh
英语翻译A high tunability of the natural frequency of 20% .我主要是最
英语翻译We present a study on the frequency-dependent reflection
英语翻译Wave speed in a mediumThe speed of a mechanical wave is
英语翻译A wave of sporadic demonstrations has already struck the
英语翻译A loudspeaker which emits sound of frequency 1000 Hz is