A belay device is a piece of equipment used in climbing to control the rope and help stop the climber from falling. It works by creating friction, making it easier to slow down or stop the rope if the climber slips. The device is attached to the person holding the rope and is used to keep the climber safe while they climb or come down. It helps the person controlling the rope manage the tension and prevent accidents.

ইংরেজিতে "belay device"এর সংজ্ঞা ও অর্থ

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