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71. | fulfilment ratio of service plan |
| 保养计划完成率 |
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72. | low maintenance |
| 少量维护保养 |
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73. | free maintenance period |
| 免费保养期 |
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74. | maintenance free |
| 不需保养的 |
|
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75. | Fleet Maintenance Officer |
| 船舶保养主任 |
|
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76. | tractor maintenance |
| 拖拉机技术保养 |
|
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77. | routine ammunition maintenance |
| 弹药日常保养 |
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78. | after service |
| 免费保养服务 |
|
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79. | repairing and keeping |
| 修理和保养 |
|
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80. | operation activity |
| 维护|保养|运行 |
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