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航空航天部二院六九九厂研制的“小模数塑料、塑料柔轮谐波减速器”于1991年12月6日通过了专家鉴定。 与会教授专家在听取了“研制总结”等九份报
The “Small Modulus Plastic and Plastic Flexible Harmonic Harmonic Reducer” developed by No. 6 and No. 9 Factory of Aerospace Department II passed the expert appraisal on December 6, The participating professors and experts heard the “Research and Summary” and other nine reports