Based on the kenning degree of whiting value of grey number, this paper gives a kind of order relations of interval grey number.
在灰数白化值确认度意义下，本文给出区间灰数的一种序关系。
In it, some new medical concepts such as diagnostic value, diagnostic grey degree and information cover rate are defined.
定义了诊断值、诊断灰度和信息覆盖率等医学新概念。
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