pulley 的定义
plural pul·leys.
- a wheel, with a grooved rim for carrying a line, that turns in a frame or block and serves to change the direction of or to transmit force, as when one end of the line is pulled to raise a weight at the other end: one of the simple machines.
- a combination of such wheels in a block, or of such wheels or blocks in a tackle, to increase the force applied.
- a wheel driven by or driving a belt or the like, used to deliver force to a machine, another belt, etc., at a certain speed and torque.
pulley 近义词
machine
更多pulley例句
- This easy lift pulley system allows you to free up garage space and store your bicycles above with a sturdy locking mechanism.
- This pulley system lifts the bike high on the wall and frees up floor space.
- AmazonRather than take on the precarious task of heaving your bike up to a ceiling hook, use this pulley lift that assists in slowly and smoothly raising the bike.
- What these spiders have evolved isn’t a loading-dock pulley with a wheel.
- They will guide them carefully through a 10th-floor window to the roof, then use pulleys to hang them on the recently reinforced steel frame on the rooftop.
- So we had to have a pulley system where he was lowered on cables.
- Bullock died while attempting to fix one of the presses in 1867: After it became stuck, he tried to kick a belt onto a pulley.
- But she bought a small pulley as well as the ground connections which Mr. Brill had in stock.
- The aeroplane had been hoisted to its elevated position by means of a stout rope passing through a pulley at the top of the pole.
- Shattered as were the bows of the wreck, he had succeeded in saving the two cat-heads with their three pulley-blocks.
- The gap between the sawed portions permits a pulley to be fastened on the shaft to serve as the main drive.
- The motor is lined up on the base, so that its pulley wheel will run a belt on the large wheel of the roller.