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我县工具厂于七九年六月试制成功1000×1500毫米零级花岗石平板,它是为满足加工高能加速器的磁铁而生产的。使用单位感到满意。
In June 1979, our County Tools Factory trial-produced a 1000 × 1500 mm zero-order granite slab, which was produced to meet the magnet processing high energy accelerator. Satisfied with the use of units.