This is the 16060th most frequent Russian word.
радары
Radars.
Here, 'радары' denotes radar devices as tools used in technology for detecting objects.
Современные радары позволяют обнаруживать объекты на больших расстояниях.
Modern radars allow detecting objects at long distances.
In this sentence, 'радары' is used to describe radar systems employed for monitoring and security purposes.
Радары фиксировали подозрительную активность на границе.
Radars recorded suspicious activity at the border.
Here, 'радары' refers to radar equipment being inspected for maintenance by a technician.