The two major factors impacted the reconstructed results of incomplete projection data: reconstructed methods and the projection interval angle are analyzed by digital simulation method.
通过数值模拟分析了影响残缺投影数据重建结果的主要因素：重建算法和投影间隔角。
The concepts of interval ideal point and projection of each alternative on the interval ideal point, etc.
定义了区间型理想点以及决策方案在区间型理想点上的投影等概念。
The calculation formula of extreme distance and limit interval to draw curves by straight lines on projection plane is deduced.
推导了投影平面上以直代曲的极限距离计算公式，代曲极限间隔值的探求。
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