并对一个周期带中只有一个裂缝的特殊情况，把解写成了完全确定的有限形式。

The solutions in closed form have been obtained in the particular case when there is only one crack in a periodic strip.

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我们开始于原子。每个原子有一个独特的带正电荷的原子核和一些带负电荷的电子(回忆一下因素周期表)。

We start with atoms — each with a distinctive positively-charged nucleus and a distinctive array of negatively-charged electrons (think periodic table).

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他们变得如此强烈地喜欢铸造造物们，以致于他们不选择在每一创造周期末带它们回家。

They became fond of casting creations so greatly that they chose not to take them home at the end of each creational cycle.

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Periodic Table, Table of Constants, and you are allowed an aid sheet, an 8-1/2 by 11 sheet of paper.

元素周期表，常数表，你允许带帮助表格，一个8-1/2乘11的纸。

麻省理工公开课 - 固态化学导论课程节选