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| inspection, maintenance and repair | |||
| inspection and maintenance | |||
| 检查和 维 修: 10 phrases in 7 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| Earth sciences | 1 |
| Economy | 3 |
| Nautical | 1 |
| Oil processing plants | 1 |
| Space | 2 |
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