Studies of nature or toys like pulleys, magnifying glasses, or binoculars are all ways for unschoolers to explore science.
研究自然或研究像滑轮、放大镜或者双筒望远镜之类的玩具，都是接受非学校教育的孩子探索科学的好方法。
And they are known to have used wooden pulleys, which could have been made strong enough to bear the weight of massive blocks of stone.
人们知道他们使用的是木制滑轮，这种滑轮可以被制造得足够坚固来承受大块石头的重量。
They rigged up a tent-shaped scaffold directly above the tip of the horizontal column, with pulleys suspended from the scaffold's apex.
他们在水平立柱的顶端正上方安装了一个帐篷状的脚手架，在脚手架的顶端悬挂滑轮。
滑轮的作用是什么？
There are cranks and pulleys, beltings tight or slack.
有曲杆与滑车，还有皮带或紧或松。
The same applies to chain pulleys.
同样适用于链滑轮。
Levers and pulleys are simple machines.
杠杆和滑轮是简单机械。
He measured the pulleys and found them to be the exact size.
他量了量滑轮，发现大小正好合适。
Box2D can join shapes with joints and even includes joint motors and pulleys.
Box2D可用接头连接不同的形状，甚至可以包括关节马达和滑轮。
The technician there told me my pulleys are not the problem, don't waste money on that.
店里的人跟我说，脚踏车的齿轮没什麽问题，不需要浪费钱。
In high school we learned a lot of laws about pulleys and levers used in different ways.
在高中我们已学过许多有关不同用途的滑轮和杠杆的定律。
Yaoqiang company is a professional manufacturer in many kinds of automobile pulleys founded in 1995.
耀强是一家专业从事研制、开发汽车轮系的企业。
Last of all to disappear were the sounds of building; the echo of brick on brick and the continual whine of pulleys.
最后消失的是建造的声音；砖头碰砖头的回声和连续不断的滑车的嘎嘎声。
And there was a wide range of methods used to drive them, too - pulleys, water and steam power, electricity and so on.
驱动电梯的方式很多，如皮带轮，水力，蒸汽，电力等。
Higher force ratios may be obtained by the use of more pulleys, but this advantage may be offset by increased friction.
用的滑轮越多，所得到的力的比率也越高；但摩擦力也会增大，从而抵消了一部分好处。
Changchun automobile spinning - products co . , ltd is a specialized enterprise producing pulleys by spinning technology.
长春汽车旋压制品有限责任公司，是生产汽车发动机旋压皮带轮的专业厂家。
The fixed set of pulleys (called sheaves) located at the top of the derrick or mast, over which the drilling line is threaded.
位于重型井架或桅架式井架顶部的固定的滑轮组（称之为滑车轮槽轮），通过该滑轮组钻井钢丝绳进行穿绳。
It describes additional experimental work, measuring the belt-slip speed tangentially about both of the pulleys in the variator.
本文还描述了附加的实验研究，测出了变速器内两带轮的切向滑动速度。
The Wright brothers did this using a system called wing warping, which relied on pulleys and cables to twist the wings into a different shape.
莱特兄弟通过使用一种叫做机翼变形控制（Wing Warping）的系统解决了这个难题，这个系统靠滑轮和绳索使机翼改变成不同的形状。
The series of pulleys all the parts are standard modules, according to the requirements of different steel I-beam and use flexible assembly.
该系列滑车所有部件，均由标准化模块组成，可根据不同的工字钢梁及运用要求灵活组装。
And while Arthur didn't build his forest of pipes and pulleys to explain why birds fly south in the fall, he's given new meaning to the term "hard - wired".
虽然亚瑟没有建造出一套管道和滑轮的机械森林，解释为什么鸟类要在秋天南飞，但是，他对于什么是“硬线连接”，赋予了新的涵义。
The four corners of the frame are provided with four pulleys. Wire ropes pass round the pulleys and are tightened on the reel drum of a crane trolley.
框架上面的四角装有四只滑轮，钢丝绳绕过滑轮向上系于起重行车的卷筒上。
Thrust ratios between driving and driven pulleys at several different speed ratios were plotted with respect to torque ratio and compared with each other.
绘出了不同速比下主、从动带轮间相对于转矩比的推力比线图并作相互比较。
LD wheel, wheel group, drum group, hook group, pulleys, couplings, wire rope, cable pulley, motor, brake, reducer, cable reel, overload limiter, standard parts.
LD车轮，车轮组，卷筒组，吊钩组，滑轮组，联轴器，钢丝绳，电缆滑车，运行电机，制动器，减速机，电缆卷筒，超载限制器，标准件。
The movable rope tightening device is applicable to rope pulleys of different weight, and particularly has more advantages when applied to heavier rope pulleys.
可适应不同重量的绳轮，尤其是对较重绳轮更有其优越性。
Newly developed three ring gear reducer is comprised of synchronous belt, big and small pulleys, crankshaft, drive ring plate, output shaft, external gear and case.
设计的新型三环减速器主要由圆弧齿同步齿形带、小带轮、大带轮、曲柄轴、传动环板、输出轴、外齿轮和箱体等组成。
Bachelor of Science degree or above in Mechanical Engineering; Knowledge of engineering design for Belt Conveyor Systems & Components (idler, steel frames & pulleys) preferred.
大学或以上学历，机械专业，最好具有胶带机及其部件（托棍、钢结构、滚筒）的技术设计知识。
Bachelor of Science degree or above in Mechanical Engineering; Knowledge of engineering design for Belt Conveyor Systems & Components (idler, steel frames & pulleys) preferred.
大学或以上学历，机械专业，最好具有胶带机及其部件（托棍、钢结构、滚筒）的技术设计知识。
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