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51. | data imperfection |
| 数据缺陷 |
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52. | extrusion defect |
| 挤压缺陷 |
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53. | topological defect |
| 拓扑缺陷 |
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54. | crystallographic defect |
| 结晶缺陷 |
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55. | acceptor defect |
| 受体缺陷 |
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56. | repair of defects |
| 缺陷修理 |
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57. | immunologic deficiency |
| 免疫缺陷 |
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58. | congenital defect |
| 先天缺陷 |
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59. | shortcoming n.failure to be of a required standard;fault |
| 缺点;缺陷 |
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60. | weld(ing) defect (=welding flaw) |
| 焊接缺陷 |
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