An ammeter is an instrument for measuring an electric current.

电流表是测量电流的仪器

What does that ammeter read?

那个电表上的度数是多少？

He was very attentive to the ammeter.

他十分经心在意地望着电流计。

He was very attentive to the ammeter.

他十分经心在意地望著电流计。

He only had some ammeter and an ampoule.

他只有一些安培计和一个安瓶。

Built-in isolating explosion button and ammeter.

内装隔爆型按钮和增安型电流表。