外调制是甘肃境内影响力排位前列的网站之一，也是中国新闻网地方频道。
为设计性能良好的外调制光发射机提供了依据。
The foundation is given to design the good external modulator optical transmitter by calculating CSO.
声光调制器利用声光晶体的声光效应对输入信号进行外调制。
Imput signal is externally modulated by acoustooptic modulator with acoustooptical effect of acoustooptic crystal.
在相同串扰水平情况下，直接调制的功率代价小于外调制的功率代价。
The power penalty of direct modulation is smaller than that of external modulation at the same crosstalk level.
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