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| 日常维护检修 | |||
| 小修 | |||
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| 日常维护; 运行修理检修 | |||
| 小修 | |||
| 运行期检修; 日常修理; 日常维修; 日常维护检修 | |||
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operating repairs : 8 phrases in 6 subjects |
| Accounting | 1 |
| Business | 1 |
| Earth sciences | 2 |
| Economy | 1 |
| Rail transport | 1 |
| Technology | 2 |
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