think of the way walls get put up: a prefabricated wall before the invention of the crane and the pulley has to be pushed up by a bunch of people.
想想筑墻的方法:,在发明起重机之前,一面提前造好的的墻,由人力推起。
speed adjustment by axis continuously variable transmission for upper mold, and by pulley for lower mold.
上模轴心采用无段变速器器调速,下模采用皮带轮调速,上模有位移功能。
all of the expedition「s food, water, and gear had to be hauled to the summit rim, then lowered by pulley into the caldera.
探险队所有的补给和器材都要被拖曳到峰顶边缘,然后再通过滑轮垂降到火山口中。
here is a picture of some pulleys i cast and some pulley patterns i made.
下面是一些我投滑轮图片和一些滑轮我提出的模式。
an illegal miner uses a rudimentary pulley to descend into a hole dug in search of gold at a makeshift camp for miners near el callao in venezuela」s southern bolivar state, on july 15, 2010.
2010年7月15日,在委内瑞拉玻利维亚城南部的elcallao的矿工安置点,一名非法矿工通过简单的滑车进入到为寻找金矿而开凿的地洞中。
the pulley has no mass the pulley is completely frictionless and the string has no mass-- it「s a massless string.
假设滑轮,完全没有质量和摩擦,而细绳也没有质量。
to keep the heavy hatch from slamming shut on young fingers, i strung a counterweight (an old railroad hammerhead i found at a junk shop) through a small pulley above.
为避免沉重的屋门夹住孩子的手,我穿过上面的小滑轮系上了一个平衡物(我在旧货商店找到的一个旧铁路锤头)。
definition: the pulley wheel that turns inside a block, around which a rope or line passes.
在一个滑轮装置内的被绳子或钢索环绕着的转动的轮子。
why it」s innovative: instead of separating in the middle like a drawbridge, the pont gustave-flaubert「s deck is lifted straight up by a butterfly-shaped pulley system so tall ships can pass through.
创新点:与从中间开合的吊桥不同的是古斯塔夫—福楼拜桥直接由蝴蝶形状的滑轮系统吊起,高船过河也能畅通无阻。
you」re asked to go to the front of the class to discuss the angst of proust「s literary work or to demonstrate how a pulley works.
here is how设若有人请您到讲台前向大家阐述法国作家proust作品中的焦虑或者向大家说明滑轮装置的工作原理。
so here is that object and here is the string and a pulley and here a string.
物体和绳子相连,滑轮,细绳。
as pulley puts it, "we only have so many orifices. you」d think we'd all be itching to take advantage of them all, right?
像pulley所说的那样,「我们的身上有许多的孔,我们都渴望它们每一个都利用起来,对吗?」
timing belt: belt and pulley need replacing between 60-70,000 miles.
同步带:皮带和滑轮之间60-70,000需要更换英里。
fasten the pulley and the support block to your worktable.
拴紧对你的工作台的滑车和支承区块。
the pulley over which this rope ran was fastened underneath the lantern in a little iron box, the key to which was kept by the lamp-lighter, and the rope itself was protected by a metal case.
绕绳子的转盘关在灯下面的一只小铁盒里,钥匙由点灯工人保管,绳子在一定的高度内有一根金属管子保护着。