It is shown that after very fast flattening, the system reaches a quasi-equilibrium state and successively forms a disk of finitethickness.
计算表明该系统在很快变平以后,趋于准平衡态且形成一个有限厚度的盘。
3
The other seven are tiny (an analogy might be a sheet of paper, which is two-dimensional for practical purposes, even though it does have a finitethickness).