Upon this frame, use matrix Lie group to express the rotation space, then base on Bayesian estimation framework, calculate the minimum mean squared error bounds which use the matrix Lie groups.
在这种框架中，利用李群来表示旋转空间，然后基于贝叶斯估计结构，计算了利用李群的表示的最小均方误差估计性能界限。
This must look that the owner can have views upon the construction side to plan carefully on the material, each kind of building materials calculate that cuts or uses that province material again.
这就得看业主会不会盯牢施工方在材料上精打细算，每种建材都算一算再切割或者使用那省出来的材料。
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