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英语翻译The relationship between stress and strain in a particul

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英语翻译
The relationship between stress and strain in a particular material is determined by means of a tensile test.A specimen of the material,usually in the form of a round bar,is placed in a testing machine and subjected to tension.The force on the bar and the elongation of the bar are measured as the load is increased.The stress in the bar is found by dividing the force by the cross-sectional area,and the strain is found by dividing the elongation by the length along which the elongation occurs.In this manner a complete stress-strain diagram can be obtained fro the material.
主要是对这句话的翻译:The stress in the bar is found by dividing the force by the cross-sectional area,and the strain is found by dividing the elongation by the length along which the elongation occurs.
上面:
之间的关系应力和应变在一个特定的物质决心通过拉伸试验.样本的材料,通常的形式,圆钢,放置在试验机,受到紧张局势.该部队的酒吧和伸长率的测定酒吧的负荷增加,压力在酒吧找到除以武力的横截面面积,以及发现株除以伸长的长度沿而伸长率occurs.In这种方式一个完整的应力应变图,可来回的 材料.
主要:之间的关系应力和应变在一个特定的物质决心通过拉伸试验.样本的材料,通常的形式,圆钢,放置在试验机,受到紧张局势.该部队的酒吧和伸长率的测定酒吧的负荷增加,压力在酒吧找到除以武力的横截面面积,以及发现株除以伸长的长度沿而伸长率occurs.In这种方式一个完整的应力应变图,可来回的材料.