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Ultimate elongation. Alternate term for elongation of material at rupture under tensile loading.
极限伸长率。它又称为材料在拉伸负荷作用下的断裂伸长。
Ultimate strength. Highest engineering stress developed in material before rupture. Normally, changes in area due to changing load and necking are disregarded in determining ultimate strength.
极限强度。材料在断裂前产生的最高工程应力。确定极限强度时，一般不考虑因负荷和颈缩变化而引起的面积变化。
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