전파를 이용하여 물체의 존재, 위치, 속도 등을 탐지하는 시스템.
A system that uses transmitted radio waves to detect the presence, location, distance, and speed of moving or stationary objects like aircraft or ships (an acronym for RAdio Detection And Ranging).
예문:
"Air traffic controllers rely heavily on radar to monitor all incoming and outgoing flights."
"The principle of radar is based on measuring the time delay of reflected electromagnetic pulses."
레이더 기술을 활용하는 장치나 기구, 특히 속도 측정기나 기상 관측 장치.
An apparatus or device, such as a police speed gun or a weather monitoring instrument, that utilizes radar technology.
예문:
"The weather station installed a powerful new radar to track severe storms approaching the coast."
"The police officer used a handheld radar to clock the speeding vehicle at 85 miles per hour."
관심, 인식 또는 주의의 범위.
The scope of attention, awareness, or notice, often used in phrases like 'on the radar' or 'off the radar'.
예문:
"After the scandal, the politician tried to stay completely off the radar for several months."
"The startup's innovative product quickly landed on the radar of major tech investors."