应答器 (yìng dá qì) — transponder
Definition
A transponder is an electronic device that automatically receives a signal and sends back a reply — used in aviation (aircraft identification) and security (key fobs, toll tags).
noun
transponder
Measure word · 个
Examples
- 应答器。Fēi jī shàng ān zhuāng le yìng dá qì.A transponder is installed on the aircraft.
- 应答器。Zhè ge yìng dá qì kě yǐ fā sòng shí bié xìn hào.This transponder can send identification signals.
- 应答器。yìng dá qì Zài háng kōng guǎn zhì zhōng hěn zhòng yào.Transponders are very important in air traffic control.
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