在这种反向耦合中,移动板的位置对移动它的力有影响,可以产生变化的复杂运动。
Such a back-coupling, in which the position of the moving plate has an impact on the forces that move it, could produce complicated and varying motions.
随着时间的推移,地壳板块移动,同时也移动了大陆和海底。
Over time, the tectonic plates move and shift, which moves the continents and the ocean floors too.
在地壳下面,有许多移动的板块在缓慢移动。
Underneath the Earth's crust, there are a number of shifting slabs or plates that are slowly moving.
And so what happens when we remove these stops is that the piston slams up against the next pair of stops.
把挡板移开后活塞会,向上移动直道第二个挡板处。
Sometimes it's easier actually not touch it to the metal, -- I should have- TA: It's hard to see if it's moving or not.
有时候它更容易不接触金属,我本应该-,助教:很难看到它是否移动了。
Now this can actually take a while to watch but you'll see that the numbers are moving into position.
现在大家可以观察一会儿,你会发现,数字都被移动到了合适的位置。
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