Sliding resistance was replaced by the fixed value resistance, and potentiometer was used to adjust volt, it could make measurement of diode reverse characteristic more convenient.
用定值电阻代替滑线变阻器，用分压器调节电压，可使二极管反向特性的测量更加方便。
The electric resistance of incandescent lamps is previously calculated as a fixed value.
有关白炽灯的计算，一般是把其电阻当作定值处理的。
The resistance reduction factor is suggested as a fixed value of 0.90, regardless of the strain level of the tensile steel reinforcement.
基于对抗力折减系数的参数研究结果，无论钢筋的应变水平如何，建议取固定值0.90。
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