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41. | combination chuck |
| 单动联动两用卡盘|复动夹盘 |
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42. | bit combination |
| 位组合 |
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43. | combination backings |
| 复合背衬 |
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44. | combination drug |
| 复方抗菌药 |
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45. | combination bevel |
| 组合斜角规 |
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46. | combination chain |
| 混合链 |
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47. | combination boiler |
| 复式锅炉 |
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48. | combination drive |
| 往复联合机 |
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49. | combination buoy |
| 组合浮标 |
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50. | combination drying |
| 混合干燥 |
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