本文利用高斯分解法给出了聚焦光学系统中光学非线性介质引起的光学限制效应，以及几何排布对其的影响。

This paper presents the optical limiting and its dependence of the geometrical arrangement in the focused optical system by employing the Gaussian decomposition method.

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本文提出了一种新的求解操作器运动学逆问题的分解解法，它是对现有的代数解法和几何解法的综合。

This paper combines the algebraic method and geometric method and presents a new resolution meth-od of solving the inverse kinematic problems of manipulators.

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本文提出了一种新的求解机械手运动学逆问题的分解解法，它是对现有的代数解法和几何解法的综合。文中结合PUMA机械手对该解法作了具体阐述。

By combining the algebraic method and geometric method, a new resolution method for solving the inverse kinematic problems of manipulators is presented, with PUMA manipulator given as an example.

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