1) sum efficiency extrapolation
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相加效率外推
1.
A 4πβ-4πγ detector configuration with a 4πβ(PC) flow proportional counter and a large size well-type 4πγ NaI(Tl) crystal was described,and the theoretic function of sum efficiency extrapolation was established.
阐述了由4πβ(PC)流气式正比计数器及大体积井型4πγNaI(Tl)晶体组成的4π-β4πγ活度测量装置,从理论上建立了相加效率外推方程,并利用相加效率外推方法测量了60Co1、34Cs活度,其相对标准不确定度分别为0。
2) external (thermal) efficiency
![点击朗读](/dictall/images/read.gif)
外(热)效率,相对有效效率
3) weighted relative efficiency
![点击朗读](/dictall/images/read.gif)
加权相对效率
1.
For the relative efficiency of parameter estimation in growth curve model,the weighted relative efficiency is given.
对增长曲线模型中参数估计的相对效率,本文提出了一种新的定义———加权相对效率,并研究了它的性质,以及与文献[4]中的两种相对效率的关
4) weighted average algorithm
![点击朗读](/dictall/images/read.gif)
加权外推
1.
A kind of modeling method is proposed based on weighted average algorithm.
![点击朗读](/dictall/images/read.gif)
基于加权外推算法建立了一种的地形几何模型。
2.
For the requirements of creating 3D terrain based on the elevation data which is in the form of regular grid, a kind of modeling method based on weighted average algorithm is proposed.
针对由数字地图等以均匀网格形式给出的高程数据生成真实三维地形的仿真需求,提出了一种基于加权外推算法的地形几何模型。
5) extrapolation by similarity
![点击朗读](/dictall/images/read.gif)
相似外推
6) frequency extrapolating
![点击朗读](/dictall/images/read.gif)
频率外推
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