Because temperature is a factor in the diode equation,and we want the two PN junctions to behave identically under all operating conditions, we should maintain the two transistors at exactly the same temperature.
Because temperature is a factor in the diode equation,and we want the two PN junctions to behave identically under all operating conditions, we should maintain the two transistors at exactly the same temperature.
因为温度出现在二极管方程中，为了让两个PN结在所有条件下都具有同样的行为，就必须让两者处在精确相同的温度下。