在测量一个器件，如电容器上的电荷时，重要之点是要首先关闭静电计的零点检查功能，然后再将电容器连到高阻抗输入端。
When measuring the charge on a device such as a capacitor, it's important to disable the zero check of the electrometer first, and then connect the capacitor to the high impedance input terminal.
本文归纳出利用对称负载的阻抗角，计算二瓦特计法表读数的一般规律。
This paper concludes general calculative regularity of readings of two-wattmeter method using the impedance Angle of balanced load.
改进后的电位计具有良好的频率特性及防共扼干扰的能力，能适应各种阻抗系统的需要。
It is of good frequency character and capacity of preventing conjugation interference. It is suitable for all kinds of impedance systems.
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