依据热电阻与温度的数学关系，通过控制热电阻的电压电流恒定实现温度恒定的控制。
According to the mathematics relation between thermal resistance and temperature, controlling the voltage and electric current of thermal resistance invariable to realize the constancy of temperature.
而对于模型中与采集量历史记录无关、反映电压电流瞬时变化关系的元件则用实际元件模拟。
Those components of which values are independent on history record of sampled quantities and reflect the relationship of instantaneous voltage and current are realized by themselves.
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