很好的脉冲稳定度是考虑热现象和电源波动的深入研究的结果。
The very good pulse to pulse stability figure is the result of a deep study which has been made taking into account the thermal phenomena and the power supply fluctuations.
打开计算机或正在使用计算机的时候，都可能有很小的电源电压波动。
It could be that there was a minor power fluctuation when you turn your computer on or while you were using the computer.
电源电压波动必须在允许范围内，并且保持相对稳定。
Power supply voltage fluctuations must be within the allowable range, and remain relatively stable.
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