在第二部分第一篇论文中，我们系统研究了二维非交换李代数及其全形的可解性、完备性与非半单性等性质。
In the first paper of the second part , it studies two dimensional noncommutative Lie algebra and its solvability, completeness and nonsemisimplicity and so on .
但从2002年春天开始，以色列的安全形势逐渐改善。
But security in Israel improved progressively from the spring of 2002.
他们的计算显示崩塌恒星的事件穹界从来不会完全形成，或者至少对从远处观察黑洞的那位物理学家来说是不会完全形成的。
Their calculations suggest that the event horizon for collapsing stars never quite comes into existence, at least, not for the colleague watching from far away.
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