It includes summing amps for the four Echo Sends, four Track Busses and Stereo Mix Bus when linked up with the 7600 Input Module.是什么意思_It includes summing amps for the four Echo Sends, four Track Busses and Stereo Mix Bus when linked up with the 7600 Input Module.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句