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| 1. | oil seal replacement |
| 油封更换 |
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| 2. | signal replacement |
| 信号更换 |
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| 3. | sleeper replacement |
| 轨枕更换 |
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| 4. | replacement of assets |
| 资产更换 |
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| 5. | tank replacement |
| 更换油罐 |
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| 6. | replacement of goods |
| 更换货物 |
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| 7. | track replacement |
| 线路更换 |
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| 8. | replacement of meter |
| 更换水表 |
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| 9. | replacement factor |
| 更换因数 |
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| 10. | ballast replacement |
| 道碴更换 |
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