这些参数应用与那些达到66%的置管率的患者人群和同一群当前同时建立了血管通路的患者的混合群体。
These parameters were applied to a cohort of patients who meet the 66% AV fistula target and an identical cohort with the current vascular access case mix.
主要考虑非线性波方程组的一些简单对称及其构成的李代数，并利用所得对称给出该方程组的一些单参数变换群。
In this paper, the symmetries and Lie algebra of a coupled nonlinear wave equation were discussed. One-parameter transformation groups of this equation were obtained by using the symmetries.
本文简要计算并分析了钆可燃毒物热群参数、能谱随燃耗变化的特性。
This paper represents the analysis and calculation of thermal group parameters of gadolinium oxide as burnable poison, and characteristics of energy spectrum with change of burnup.
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