... fine boring machine 精密镗床 fine boring tool 精镗刀具 fine boring 精密镗孔 ...
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在引进汽车发动机生产线上对高速半精镗、精镗缸孔的CBN刀具进行了切削对比试验。
The comparison tests of CBN cutters for high speed boring cylinder blocks are carried out on the introduced car engine production lines.
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