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第二届中国国际机床展览会于1991年9月17日在北京正式开幕。本届展览会上,国外量仪展品中,坐标测量机占了绝大多数。著名厂家美国Brown &Sharpe公司会同子公司西德Leitz及引进Leitz技术进行生产的上海机床厂,展出了近十台大小规格精度不等的三坐标机。上海机床厂按Leitz技术生产的PMM1086型三坐标机,精度已达到Leitz超精密级水平。德国Zeiss厂及意大利DEA公司展览的三坐标机结构新
The second China International Machine Tool Fair was officially opened in Beijing on September 17, 1991. At this exhibition, coordinate measuring machines accounted for the vast majority of foreign measuring instruments. The famous manufacturer Brown & Sharpe in the United States, together with its subsidiary Leitz in Germany and Leitz Technology in Shanghai, has exhibited nearly ten sets of three-coordinate machines of different sizes and sizes. The PMM1086 three-coordinate machine produced by Shanghai Machine Tool Works according to Leitz technology has reached the Leitz precision level. The new three-coordinate machine structure at the Zeiss plant in Germany and DEA in Italy