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。
The culture fluid of the invention cultures cell with higher amplification times and longer generation time.
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。
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.
利用本文提出的动态模型变参数数学模型，在国际上首次对燃料电池起动过程进行了动态模拟，揭示了燃料电池热态起动过程中，电池温度在三维空间上随时间的变化规律。
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.
利用本文提出的动态模型变参数数学模型，在国际上首次对燃料电池起动过程进行了动态模拟，揭示了燃料电池热态起动过程中，电池温度在三维空间上随时间的变化规律。
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