Knowing how to pick up the right clothes according to the weather.
能依据天气变化选择适当衣服。
PD signal is weak signal, so the first problem of on-line monitoring is how to pick up the weak anti-stationary random signal.
由于局放信号属于弱脉冲信号，因此实现在线监测的首要问题是如何从强干扰中提取弱的非平稳随机信号。
How to seek new breakthroughs in points in the crisis and how to pick up in the global economy after a quick upgrade?
怎样在危机中寻求新的突破点，怎样在全球经济回暖后快速升级？
How to seek new breakthroughs in points in the crisis and how to pick up in the global economy after a quick upgrade?
怎样在危机中寻求新的突破点，怎样在全球经济回暖后快速升级？
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