He Fang,Qiu Xuesong,Cheng Lu.Service-faced billing system architecture model base on NGI[J].Journal of Beijing University of Posts and Telecommunications,2004,27(Sup):54-58.是什么意思_He Fang,Qiu Xuesong,Cheng Lu.Service-faced billing system architecture model base on NGI[J].Journal of Beijing University of Posts and Telecommunications,2004,27(Sup):54-58.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句