The control circuit is a self-balancing current loop which makes use of a four-terminal resistor of nickel wire to assure a close-loop both electrically and thermally.
控温电路采用四端电阻自平衡电流环路，从而保证其电气和温度均处于闭环状态。
The control circuit is a self-balancing current loop which makes use of a four-terminal resistor of nickel wire to assure a close-loop both electrically and thermally.
控温电路采用四端电阻自平衡电流环路，从而保证其电气和温度均处于闭环状态。
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