He had a pulley system — to raise and lower the paintings.

他有一个轮系统——用来升降画作。

A compound bow has pulleys, which help reduce the tension when we pull the arrow back.

复合弓有轮，当把箭拉回来时，轮有助于减少拉力。

And the hind leg has what we call a double-trochleated astragalus.

其后腿上有称作双轮结构的距骨。

And when guests come over, they can stay on the Tootsie Roll-away bed.

客人来了可以睡在轮床上。

They navigate the sled down the track using a pulley system.

他利用轮系统引导雪橇沿着轨道前进。

So my therapies are roller skating, playing my games.

所以的疗法是轮溜冰和玩游戏。

They had no machines in those days - rollers and pulleys at most.

当时他还没有机器--至多只有滚轴和轮。

First of all, this is exactly what you'd expect theoretically, with any lever or pulley.

首先，这正是您理论上对任何杠杆或轮所期望的。

The fancy hide-out has a climbing wall, a bucket pulley and a spiral slide.

隐有一个攀岩墙，一个可以运送水桶的轮，以及一个旋转梯。

It has to be tall because it is like a giant block and tackle

井架必须很高，因为它像一个巨型轮组。

The field cable is pulled through the pulleys by the Sarens team using a rope.

Sarens 团队使用绳索将现场电缆拉过轮。

A pulley is a tool that makes things easier to lift.

轮是一种工具, 可以让东西更容易举起。

And, when guests come over, they can stay on the tootsie roll-away bed.

客人来了可以睡在轮床上。

The key was to use a pulley system that would magnify the applied force.

关键是使用可以放大施加力的轮系统。

This cable then guides another, thicker cable from the winch through the pulley.

然后，该电缆引导另一根较粗的电缆从绞盘穿过轮。

Sometimes we received wine and victuals from below, which were drawn up by pulleys.

有时从下面得到酒和食物，它是由轮拉上来的。

Could I tug on a pulley and lift up the sidewalk? No.

• 可以拉动轮并抬起人行道吗? 不能。

Everything is ready for use, the pulley, the bucket, the rope.

一切都已准备就绪，轮、水桶、绳子。

The blocks are raised by means of pulleys.

【means】那些大块物件是借助轮吊起来的。

And the pulley moaned like an old weathervane which the wind had long since forgotten.

轮呻吟着，就像一个早已被风遗忘的旧风向标。