利用系数矩阵和极大项，证明了这类李代数是半单李代数且没有二维交换子代数。
Using the notion of coefficient matrix and maximal element. We prove that the Lie algebra is semi-simple and it has no abelian two dimensional subalgebra.
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 .
建立了叉流式热交换器在热流体和冷流体都随时间变化的条件下的动态二维数学模型。
The dynamic mathematical model of cross-flow heat exchangers is established in this paper, which takes into account of the arbitrary variations of temperature and flowrate inlets.
采用箱式模型、二维ADI流体方程和对流扩散模型计算浔江湾海水交换时间，分析浔江湾的水动力特点和湾内海水交换时空分布的特点。
With the box model, 2D ADI tidal current equation and convectiondiffusion model, the exchange time of Xunjiang bay water is computated.
同时将一类与外界无热交换的二维逆热传导方程应用到图像压缩中，并取得了预期的效果。
At the same time, we introduce a kind of two dimensional inverse heat conduction problems which do not convect with outer space in doing the compression, and we have got the expected result.
用付立叶光学原理，从理论与实践讨论了二维付立叶交换光学系统的空间带宽积的物理意义。
The Spatial -Band width product of 2-D Fourier transform optics system has been discussed dinal in this paper.
用付立叶光学原理，从理论与实践讨论了二维付立叶交换光学系统的空间带宽积的物理意义。
The Spatial -Band width product of 2-D Fourier transform optics system has been discussed dinal in this paper.
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