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90 积分 2024-11-09 加入
Simulation design and structure optimization of the multisegmented composite ultrasonic rolling vibrator for crankshaft journal
3个月前
已完结
Study on electrochemical machining of involute internal spline of Cr-Co-Mo-Ni high-hardness gear steel
5个月前
已完结
Sealing Performance of Pressure-Adaptive Seal
10个月前
已完结
6061铝合金固溶热处理生产线料框的改进设计
11个月前
已完结