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關注：1
2013-05-23 12:21
求翻譯：in turning different material and works of different diameters ,lathes must be run at different speeds . thegearbox contained in teeh headstock makes it possible to run the lathe at various speeds .是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
in turning different material and works of different diameters ,lathes must be run at different speeds . thegearbox contained in teeh headstock makes it possible to run the lathe at various speeds .
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