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31. | Machine Tool design |
| 机床设计 |
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32. | machine operator |
| 机床工人 |
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33. | machine attendance |
| 机床保养 |
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34. | program control machine tool |
| 程序控制机床 |
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35. | general purpose machine |
| 万能机床 |
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36. | Machine Tool Circuit |
| 机床电路 |
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37. | aggregate machine tool |
| 综合机床 |
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38. | machine tool working lamp |
| 机床工作灯 |
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39. | knurling machine |
| 滚压机床 |
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40. | program controllable machine tool |
| 程控机床 |
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