提出了机械传动部件和大功率交流伺服电机的设计方法，并实际应用于1000 kN数控折弯机中。
The design method about machine drive component and high - power ac motor is discussed. A engineering application case of 1000kn CNC brake - press is given.
直-交流腐蚀箔的漏电流最小，硬质交流腐蚀箔的抗拉强度及折弯次数最大。
The leakage current through DC-AC etched aluminum foil when anode finishing is least, while the tensile strength and bending property of hard AC-etched aluminum foil are best.
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