milliammeterWiktionary 原文构词拆分milli-前缀In the International System of Units and other metric systems of units, one-thousandth of the unit to which it is prefixed; that is, multiplying the unit to which it is attached by 10-3. Symbol: m. · thousand+ammeter词根/词干词源说明From milli- + ammeter.释义（英文）名词 NounAn instrument for measuring electrical current in milliamperes. [from 20th c.]