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| 41. | corrective maintenance |
| 设备保养 |
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| 42. | maintenance of manpower |
| 劳力保养 |
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| 43. | maintenance practice |
| 保养程序 |
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| 44. | maintenance schedule |
| 保养明细表 |
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| 45. | maintenance procedure |
| 保养方法 |
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| 46. | Take good care of health |
| 保养身体 |
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| 47. | maintenance project |
| 保养计划 |
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| 48. | Maintenance Company |
| 保养连 |
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| 49. | Machine Maintenance |
| 机械保养 |
|
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| 50. | service specification |
| 保养规程 |
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