Dense wavelength division multiplex (DWDM) and all opticalnetwork (AON) have become the hot issues in the field of optical communication presently.是什么意思_Dense wavelength division multiplex (DWDM) and all opticalnetwork (AON) have become the hot issues in the field of optical communication presently.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句