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| 51. | deface an inscription |
| 磨损碑文 |
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| 52. | wearing character |
| 磨损特性 |
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| 53. | over wear=overwear |
| 过度磨损 |
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| 54. | stand wear and tear forever |
| 永不磨损 |
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| 55. | abrasion and wear |
| 磨耗;磨损 |
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| 56. | wear of polymers |
| 高聚物磨损 |
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| 57. | abrasive action |
| 磨损作用 |
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| 58. | permissible wear |
| 允许磨损 |
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| 59. | abrasive nature |
| 磨损性质 |
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| 60. | catastrophic wear |
| 灾变磨损 |
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