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| 残余延伸率; 断裂延伸率 | |||
| 断裂伸长率 (【技】材料试样在拉伸试验中被拉断时，测量标距间的伸长量与原始标距长度之比，以百分数表示。试验时用电阻应变片与引伸计测量拉伸变形量，直至试样破坏。从测得的应力-应变曲线中可算出断裂时伸长率。断裂伸长率与材料性能密切相关。韧性好的材料，断裂伸长率较高。) | |||
| fracture elongation: 5 phrases in 3 subjects |
| Bridge construction | 1 |
| Metallurgy | 2 |
| Technology | 2 |
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