该衰减电路是一种降低静电计交流响应的低通滤波器，使我们可以准确地进行直流弱电流的测量。
A damping circuit is a type of low pass filter that reduces the electrometer's ac response so the low DC current can be measured accurately.
衰减电路可以装在静电计的内部，也可以是一个外部电路。
The damping circuit may already be built into the electrometer or may be an external circuit.
为了解决由烟或气所引起的信号衰减问题，研制出了双色高温计。
Two color pyrometers were developed to solve the problem of signal attenuation by intervening smoke or fumes.
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