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41. | joint at acute angle |
| 锐角接头 |
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42. | chamfered joint |
| 斜削接头 |
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43. | spherical joint |
| 球形十字接头 |
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44. | universal joint knuckle |
| 万向接头关节 |
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45. | defective joint |
| 不良接头|有故障的接头|有故障的绝缘节 |
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46. | shrinking of tool joint |
| 接头冷缩 |
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47. | half-and-half joint |
| 对拼接头 |
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48. | Constant velocity joint |
| 等速万向接头 |
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49. | multiple-spot welded joint |
| 多点接头 |
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50. | universal joint pin |
| 万向接头销 |
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