He invented the skill of throwing a special rope called a lasso over a cow's head to catch wandering cattle.
VOA: special.2011.06.11
So, a massless body cannot have a net force on it, because the acceleration of the rope cannot be infinite.
所以没有质量的物体不会受到力,因为绳子的加速度不可能是无穷大
Does that forces us to say, "Ah, so it's not ?" the same rope at the end as the beginning."
那我们是不是就必须说,“啊,这不是一开始那根绳子了“
He offered ten thousand dollars to anyone willing to follow him on a one-day climb without a rope.
VOA: special.2009.12.09
So, massless bodies will always have, like a massless rope, equal and opposite forces on the two ends.
所以无质量的物体,比如这个绳子,两边所受的力永远都相等
The belayer then gives more rope up to the lead climber as he moves up the rock.
VOA: special.2009.12.09
The rickety bridge is one that's kind of a rope bridge.
摆桥是索桥的一种。
If he falls, he is protected by the rope connected to the devices and the belayer.
VOA: special.2009.12.09
Suppose I had a rope, that stretched from that into the room, all the way across-- to this end of the room.
假设我有一根绳子,从屋子的这一端,一直伸展到-,屋子的这一端。
I lighted my lantern, and found that I was perched on a narrow ledge, almost at the end of my rope literally and figuratively.
VOA: special.2009.12.07
Either a rope is pulling, a rope is pushing it, you are pushing it, you are pulling it.
无论绳子是在拉你还是推你,无论你是在推物体还是拉物体
These devices use rope-like material to carry movement from the shoulder to the prosthetic arm.
VOA: special.2009.03.10
This is very important, because when you buy a rope, they will tell you how much tension it can take before it'll snap.
这非常重要,因为你去买绳子,他们会告诉你,绳子能承受的最大拉力是多少
One of McClellan's Generals, Samuel Sturgis, greeted Pope at Centreville: "I always told you,Pope, that if they gave you enough rope, you would hang yourself."
VOA: special.2009.09.24
What makes up a rope? Of course you know, ropes are basically bundles of fibers, very same fibers that have been woven together in a certain way.
绳子是由什么构成的?,你肯定知道,是由一束束纤维构成,是由一样的纤维按某种方式编织,在一起构成。
The lead climber attaches his rope to devices in the rock as he climbs up.
VOA: special.2009.12.09
you're looking for that equal and opposite forces acting at two ends of the rope.
你就得求出作用在绳子两端的,大小相等方向相反的力
In another event, the cowboy throws a rope around the neck of a young cow.
VOA: special.2009.02.16
Whenever you're asked on a problem, "What's the tension on the rope?"
不管什么题目问你,"绳子的张力是多少"
This nest is made up of thousands of pieces of bamboo tied together with the kind of brightly colored rope usually used by mountain climbers.
VOA: special.2010.08.13
In all these examples, this rope is assumed to be massless.
在所有这样的题目里都假设绳子没有质量
So he took his rope out though some say it was a huge rattlesnake and lassoed Sue to catch her and bring her down to Earth.
VOA: special.2009.11.28
I got 3 kg and I have a rope.
有一个 3 千克的物体和一根绳子
We run a tight rope daily, balancing a pile of books on the head.
VOA: special.2009.06.28
Very same rope--at that end, at this end.
同样的一根绳子,从那边到这边。
Then he tries to tie the rope around three of its legs.
VOA: special.2009.02.16
So, tension on the rope is 6 Newtons.
所以绳子的张力是 6 牛
The nucleus contains rope-like strands of DNA that carry the information.
VOA: special.2010.03.23
That is called the tension on the rope.
那就是绳子的张力
One rope here, one rope there.
一根在这里,一根在那里。
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