其输出的基准信号稳定，与电源电压、温度以及工艺的变化无关。
Reference source outputs a stable reference signal which is independent of power supply voltage, temperature and process.
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.
开关电源把直流电源或交流电源通过它可以获得一个稳定的直流电压源。
Switching power supply or DC power to AC power through it will be a stable DC voltage source.
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