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| 31. | a kind of pike used by foot soldiers in the 14th century. |
| 一种世纪士兵用的矛。 |
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| 32. | an air shaft; a ventilation shaft |
| 通风井 |
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| 33. | Inspection machining dimension of propeller shaft( intermediate shaft or counter shaft). |
| 螺旋桨轴（间轴）加工尺寸检查。 |
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| 34. | regular drill collar spear |
| 标准式钻铤打捞矛 |
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| 35. | bull dog double-slip spear |
| 双卡瓦的打捞矛 |
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| 36. | primitive weapons,eg bows and arrows,spears |
| 原始的武器（如弓箭、矛）. |
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| 37. | has positioned the flat motor crosswise in a double-tube frame and transmitted its power via a cardan shaft |
| 为了改进该车的冷却效果，首席设计师Max Friz将原来的扁平发动机放置在双管框架上，并直接通过一个Cardan shaft将动力传输到车轮。 |
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| 38. | The branch speared up into the air. |
| 枝条象矛一样伸入空中。 |
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| 39. | slim-hole drill collar spear |
| 小井眼钻铤打捞矛 |
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| 40. | packer retriever spear |
| 封隔器收回打捞矛 |
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