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81. | bearing wear constant |
| 轴承磨损常数 |
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82. | rolling wear test |
| 滚动磨损试验 |
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83. | contact wear allowance |
| 接点磨损容限 |
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84. | wear allowance zone |
| 磨损公差带 |
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85. | antiwear device |
| 防磨损装置 |
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86. | premature bit failure |
| 钻头过早磨损 |
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87. | tool wear compensation |
| 工具磨损补偿 |
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88. | attrition and attack |
| 磨损与腐蚀 |
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89. | crease edge-wear |
| 折边磨损 |
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90. | wear index analyzer |
| 磨损指数分析仪 |
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