a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time
a signal for attracting attention
a device for showing the operating condition of some system
(chemistry) a substance that changes color to indicate the presence of some ion or substance; can be used to indicate the completion of a chemical reaction or (in medicine) to test for a particular reaction
造句
Health indicators are the building blocks of the health monitor. 健康狀況指示器是健康監視器的基礎。
The operator is alerted to this situation by blinking front-panel indicators. 面板上的指示器將出現閃光，對操作者發出出現這種情況的警告。
近義反義詞
indicator
indicator base
indicator drum
indicator card
indicator disc
indicator face
indicator cock
indicator gate
indicator cord
indicator clip
indicator-on