Goldsmith said that most second-generation, or 2G, cell phones use a combination of time division and frequency division.
戈德史密斯说,大多数第二代手机或2G手机采用时间划分和频率划分相结合的方式。
2
The culture fluid of the invention cultures cell with higher amplification times and longer generationtime.
采用本发明的培养液培养细胞具有较高扩增倍数和较长传代时间。
3
The three dimensional variation rule of the temperature of the cell with the time is presented during the process of the startup. A MCFC-ST combined generation system is presented and designed.