静电计是一个理想的库仑计，因为它具有非常低的输入偏置电流和很高的输入电阻。
An electrometer makes an ideal coulombmeter because it has very low input offset current and high input resistance.
静电计是一个理想的库仑计，因为它具有非常低的输入偏置电流和很高的输入电阻。
An electrometer makes an ideal coulombmeter because it has very low input offset current and high input resistance.
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