首页英语词典indicatorindicator英英释意

indicator

英 ['ɪndɪkeɪtə] 美['ɪndɪketɚ]
  • n. 指示器;[试剂] 指示剂;[计] 指示符;压力计

英英释意


1. 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
2. a signal for attracting attention
3. a device for showing the operating condition of some system
4. (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