Imagine: a television screen has the size and thickness of a piece of paper.
想象一下：一个电视屏幕的大小和厚度只有一张纸那样。
2
So anyway, if you look at, now, something that's a bit like that piece of sphere, but with some thickness to it.
看一看的话，能看到类似于球面小块的玩意，但是它有厚度。
3
The effect of preheating, test-piecethickness and coupling agents on the electric properties and the mechanical properties of the materials have been specially studied.