Citation: | MA Guo-han, ZHANG Xun, LIANG Yong. Main Trend Specification and Crux Techniques of the 3G Mobile Communication System[J]. Journal of Yellow River Conservancy Technical Institute, 2003, 15(3): 50-53. DOI: 10.13681/j.cnki.cn41-1282/tv.2003.03.023 |