碳当量对Cr-Cu-Ni合金灰铸铁冷激凸轮轴铸造弯曲变形的影响
탄당량대Cr-Cu-Ni합금회주철랭격철륜축주조만곡변형적영향
Effect of Carbon Equivalent on Bending Deformation of Cr-Cu-Ni Alloy Cast Iron Camshafts
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