First of all, using the theory of general states Markov chain, we define some character number of skew product Markov chain.

利用一般马氏链的理论，首先给出了绕积马氏链的特征数的定义和相互关系。

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The elasticity support rigidity crossbeam method is brought forward according to orientation structure endure force character of skew bridge with multilongitudinal beams.

根据多梁式斜梁桥结构及其横向受力特点，提出了“弹性支承刚性横梁法”进行跨中荷载横向分布的计算。

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The research of the character image pre-processing focuses on the gray-scale image filtering algorithm, the skew detection of image and character segmentation algorithm;

在字符图像预处理方面，重点研究了灰度图像滤波算法、图像的倾斜检测和字符分割算法；

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