Methods In the light of acoustic theory,a non contact type detecting system of pulse signals is designed,which is used to detect the four kinds of pulse signals.是什么意思_Methods In the light of acoustic theory,a non contact type detecting system of pulse signals is designed,which is used to detect the four kinds of pulse signals.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句