英语词汇upper sum怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	upper sum
释义	upper sum 简明释义上和网络释义 1 ?上和 ... upper quartile上四分位数 upper sum上和 upper triangular matrix上三角形矩阵 ... 短语 1 darboux upper sum 达布上和 2 riemann upper sum 黎曼上和双语例句 1 Objective: To explore the role that nasolabial fold flap repair upper lip defect, sum up experience of upper lip defect. Repairing and raise operation effect. 前言：目的：探讨鼻唇沟皮瓣在修复上唇部缺损的作用，总结上唇缺损修复经验，提高手术效果。
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