jfdBNC²³⁶²¹³⁺¹ 例句 Owe system the amounts adjusting a circuit carrying out calibration and comparison method on standard wave form, may measure out part discharging looking at in electric charge by JFD-301. 该系统通过 JFD-301校准脉冲发生器对标准波形进行校准及比较法，可测量出局部放电的视在电荷量。 tianya