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表2减速器系列基本多数表3引进塔机用电机规格表（3）贵州永安电机厂承担引进塔机专用电机国产化工作。1986年开始设计，一年完成研制工作，经试用于1987年12月通过了建设部鉴定。波坦专用电机在体积和自重方面都大大小于我国同类电机国家标准，因此必须采用进口材料。在研制过
Table 2 basic reducer series Most Table 3 Introduction of tower motor specifications (3) Guizhou Yongan Motor Factory to undertake the introduction of tower crane dedicated motor localization. Design started in 1986 and completed the research and development in one year. The trial passed the appraisal of the Ministry of Construction in December 1987. Potentiary motor in terms of size and weight are much smaller than China’s national standard of similar motors, it must be imported materials. In developed