设计了4种不同的冷拉加工工艺，对航空器结构铆钉用的2A10铝合金材料进行了加工处理。利用WDW3100型微机控制电子万能试验机和YSJ—C......

The recent concern with the role of Fermi energy (EF) as a determinant of the properties of a superconductor (SC) led us......