低碳钢、变形铝合金等塑性良好的金属适合于各种塑性变形加工。
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In Engineering stress we use actual cross-sectional area in calculation.
A. 对
B. 错
In True stress we use the original cross-sectional area in calculation.
A. 对
B. 错
Strain is the deformation per unit length.
A. 对
B. 错
Stress is the force per unit resistance area.
A. 对
B. 错
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