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新东方-柯林斯雅思备考词典
detector
英 [dɪˈtektə]
[NOUN]
detectors
1. [C 可数名词] 探测器
A detector is an instrument which is used to discover that something is present somewhere, or to measure how much of something there is.
双语例句
例：a metal detector.
一架金属探测器。
例：fire alarms and smoke detectors.
火灾报警器和烟雾探测器。
例：infra-red motion detectors.
红外线运动感应器。