You wrap a rope around a pole, or around a rod, and you use the friction between the rope and that rod to your advantage, and it works as follows.
把一段绳子绕在柱上，或绕在棒子上，可以利用绳子，和柱子间的摩擦力，达到我们想要的，它是如此运作的。
I wrap this rope around here several times, and here I hang an object m which is substantially less in mass, m which is m, little m, mg and the tension equals mg.
我把绳子绕上几圈，这里挂一个物体，它的重量远小于，它的重量是，张力等于。
We wrap the rope around three times.
把绳子绕三圈。
If the object is vertical and smooth, and there is danger of the rope slipping, take an extra wrap around the object.
如果该物体是垂直且光滑的，有缰绳滑落的危险，就加用绳来包裹住物体。
They tested the idea by attaching their catalyst to a short segment of protein that can wrap with other proteins, like strands of rope fiber.
他们对设想进行了验证，通过将催化剂连接到到能与其他蛋白质结合在一起的蛋白质的部分区域，形如一条纤维束。
They tested the idea by attaching their catalyst to a short segment of protein that can wrap with other proteins, like strands of rope fiber.
他们对设想进行了验证，通过将催化剂连接到到能与其他蛋白质结合在一起的蛋白质的部分区域，形如一条纤维束。
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