In these examples, one can not only solve the inversion problems by the method of explicit function, but also make the calculation simple and the result accurate.

在这些实例中，不但能以显函数计算式的方法进行解反演问题，而且计算简捷，结果精确度高。

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The paper adopts the method of multinomial least squares as fitting to make the fitting function be simple and the amount of compensation interval be least, reduces the calculation cost.

同时，拟合方法采用目前非常成熟的多项式最小二乘拟合。从而不仅能控制拟合函数的复杂性，而且使分段拟合的补偿区间数量达到最少，极大地降低了计算成本。

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In this paper we summarize lc values in several tissue and the method to calculation them, and introduce several simple method to get input function.

重点介绍了几种组织中的L C值以及LC的计算方法。另外，还介绍了几种获取输入函数的简化方法。

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