Result:The shapes of ST segment elevation showed the regularity of concave straight convex type as the prolongation of ischemic time.
结果：ST段抬高的形态随心肌缺血时间的延长而呈“下弧形—上斜形—上弧形”的规律性变化。
Based on the concept of fuzzy random variable, the concept of convex sets of fuzzy random vectors is introduced, and some examples for such type of convex sets are given.
在模糊随机变量的基础上引入了模糊随机向量凸集的概念，给出了几个模糊随机凸集的例子。
Convex function is an significant type of function.
凸函数是一类重要的函数。
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