起重及冶金用变频调速三相异步电动机技术条件 第1部分:YZP系列起重及冶金用变频调速三相异步电动机
Technical specification for variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical application—Part 1:YZP series variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications