On the basis of these conceptions, we advance the computational formula of the absolute incidence degree, which keep invariant of translational transformation, and give a computation example at last.
给出关联空间及其绝对关联度的概念，在此基础上，提出一种保持平移变换不变的绝对关联度计算公式。
The conceptions of conjugation, exchange and inverse evolve point pair are used to explain the transformation properties of Gaussian beam.
并利用共轭、互易、反演点对变换方法图解高斯光束传输变换特性。
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