常見例句If possible, do not use offset compensation (pulsed current) because inductive reaction to the current pulse may cause unstable measurements or make autoranging difficult. 如果可能的話,不要使用偏置補償(脈沖電流)。因為對脈沖電流的感抗可能會使測量不穩(wěn)定,或者使自動量程功能難于工作。The big disadvantage is the loss of accuracy and resolution, but some digital picoammeters combine accuracy and dynamic range by combining autoranging and digital log conversion. 這種方法,較大的缺點是損失了準確度和分辨率。然而,也有些數字式皮安表,采用自動量程和數字對數變換的方法,這可將準確和寬動態(tài)范圍結合了起來。autoranging power supply 自動改變量程電源 返回 autoranging