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由于玻璃和锡之间的表面张力的相互作用,玻璃的厚度降到了6毫米。
The glass settled to a thickness of six millimetres because of surface tension interactions between the glass and the tin.
如果我们要讨论它的体积,我们要用的是表面面积,也就是4πr的平方,乘以厚度dr
So if we want to talk about the volume of that, we just talk about the surface area, which is 4 pi r squared, and we multiply that by the thickness d r.
这项基于卫星测量的研究,首次将对北极冰盖厚度的评估作为研究对象,而不是像以往的研究一样,只是对冰盖的表面积进行研究。
The study, based on satellite measurements, is among the first to estimate the thickness of the Arctic ice, rather than just its surface area.
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