So, it can help us in building a profile of different factors which work together within the world's oceans.

所以它为我们研究世界大洋而建立起一个大洋体。

More importantly it's full of the equipment that's designed to collect data. So, it can help us in building a profile of different factors which work together within the world's oceans.

重要是，它用来收集数据备。所以它为我们研究世界大洋而建立起一个大洋体。

What you can do is imagine a sequence of different  polyhedra that successively approximate a sphere, in the sense that their faces hug tighter and  tighter around the genuine surface of the sphere.

你可以想象一系列不同体相继近似于一个球体，从某种意义上说， 它们越来越紧地围绕球体真实表。