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某金属零件有耐磨性要求，在选材时应优先考虑下列哪个力学性能指标？
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某金属零件有耐磨性要求，在选材时应优先考虑下列哪个力学性能指标？
A.强度
B.硬度
C.塑性
D.韧性
正确答案：硬度
Tag：
金属工艺学
硬度
塑性
时间：2022-01-28 15:04:27
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