详细解释:n. 伏特计
【化】 伏特计
【医】 伏特计, 电压计
英语解释：
名词 voltmeter:
meter that measures the potential difference between two points详细解释：
volt.me.ter
n.（名词）An instrument, such as a galvanometer, for measuring potential differences in volts.伏特计：一种以伏特为单位测量电位差的仪表，如电压表