optical ammeter的用法和樣例：
例句
- He was very attentive to the ammeter.
他十分經(jīng)心在意地望著(zhù)電流計。 - In the experiment, will be used for measuring the current Magnetoelectric to digital multimeter ammeter, galvanometer and tangent to the electromagnetic shield.
在實(shí)驗中，將測量電流所用的磁電式電流表改為數字多用表，并對正切電流計進(jìn)行了電磁屏蔽。
