英语词汇contraction percentage of area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	contraction percentage of area
释义	contraction percentage of area 简明释义断面收缩率网络释义短语 1 area contraction percentage of 断面缩率双语例句 1 The results of performance measurement test show that tensile-strength, contraction of cross sectional area, elongation percentage, dynamic ductility of the weld all exceed their base metal. 焊后试件的性能测试结果表明，焊接接头的拉伸强度、断面收缩率、延伸率及冲击韧性均已超过母材。
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