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51. | appearance defect |
| 外表缺陷 |
|
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52. | data imperfection |
| 数据缺陷 |
|
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53. | congenital defect |
| 先天缺陷 |
|
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54. | design deficiency |
| 设计缺陷 |
|
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55. | crystallographic defect |
| 结晶缺陷 |
|
|
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56. | operational defect |
| 运行缺陷 |
|
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| |
57. | weld(ing) defect (=welding flaw) |
| 焊接缺陷 |
|
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58. | surface blemish |
| 表面缺陷 |
|
|
| |
59. | sensory handicap |
| 感觉缺陷 |
|
|
| |
60. | classification of defects |
| 缺陷分类 |
|
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| |