在探测器电路中采用猝灭电路，延长了G-M计数管的使用寿命。
The quenching circuit in the detector lengthens the using lifespan of G M counter.
研制了一种新型的探测器，利用气体放电和外部电路猝灭的方法测定样品表面发射的低能光电子。
We have studied and constructed a new detector by gas discharge and external quenching circuits to measure the low energy photoelectron emitted form the specimen surface.
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