밧줄이나 사슬을 걸어 무거운 물건을 들어 올리거나 힘의 방향을 바꾸는 데 사용하는 홈이 파인 바퀴.
A wheel with a grooved rim around which a rope or chain passes, used to change the direction of a force or lift heavy objects.
예문:
"The construction workers used a pulley system to lift the heavy steel beams to the upper floors."
"A simple fixed pulley changes the direction of the force but does not provide mechanical advantage."
축에 고정되어 벨트에 의해 회전하며, 기계 내부에서 동력을 전달하거나 속도를 조절하는 데 사용되는 바퀴.
A wheel or drum fixed on a shaft and turned by a belt, used to transmit power or change speed within a machine.
예문:
"The engine's crankshaft pulley drives the alternator and the cooling fan via a rubber belt."
"If the pulley is worn out, the belt may slip, causing the machinery to lose efficiency."
도르래 장치를 사용하여 물건을 들어 올리거나 옮기다.
To lift, hoist, or move something using a pulley system.
예문:
"The heavy supplies were pulleyed up to the mountain cabin by the rescue team."
"They pulleyed the boat out of the water and onto the trailer for winter storage."