他十分经心在意地望着电流计。

He was very attentive to the ammeter.

电流计: 根据可动线圈的偏转量来测量微弱电流或电流函数的仪器.

Galvanometer: Instrument for measuring small electric currents by deflection of a moving coil.

如何在电学实验中选配灵敏电流计?。

How to Select Sensitive Galvanometer in Electrical Experiments?

J0409型灵敏电流计适用于中学、中专等实验室测量直流电路中微小电流和微小电势差。

Sensitive Galvanometer, Model J0409, is suitable for the laboratories of middle schools and polytechnic schools to measure small electric current and electric potential difference.

普通的电流计无法响应这些快速的交替变化。

An ordinary meter will not respond to these rapid alterations .

这时,电流计指示出一个电压, 然后,指针又回了零.

The galvanometer indicated a voltage, then dropped to zero.

他先把一些绝缘导线绕在一根铁条上，并将导线的两端与一个电流计连接起来。

First he coiled some insulated wire around an iron bar, connecting both ends of the wire to a galvanometer.