Tìm kiếm
Pulley
01
ròng rọc
a wheel with a track where a rope or chain runs, used to lift heavy objects easily
Ví dụ
The workers used a pulley to hoist the heavy beam into place.
They installed a pulley in the garage to lift the engine out of the car.
He rigged up a simple pulley to raise the flag on the pole.
She demonstrated how the pulley could reduce the effort needed to move the weight.
The hook on the end of the rope attached securely to the pulley.
