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组合机床专业设计局和金属切削机床实验科学研究所在后者制订的通用部件系列的基础上,设计了XMA-1和2991型可调小型组合机床,并由哈尔科夫组合机床厂和《机床结构》厂制造。
Based on the common part series developed by the latter, the XMD-1 and 2991 adjustable small combined machine tools are designed by the combination machine tool professional design bureau and the metal cutting machine tool laboratory science research institute, and the combination of the Kharkiv machine tool plant and the “ Machine Structure ”factory manufacturing.