mirror galvanometer英美镜检流计；镜（反射）式电流计电力双语例句This paper introduces the four-probe method of measuring the conductivity of metal thin board using mirror galvanometer as measuring tool.介绍了用镜式检流计测量金属薄板电导率的四探针测量方法.这一方法是应用恒定电场理论；
