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Terms for subject Aviation containing fourth line | all forms | exact matches only | in specified order only
| English | Chinese |
| fourth line servicing | 四线保障勤务 (英国空军飞机维修体制中最高一级，包括翻修、改装等) |
| fourth line servicing | 四线维修 |
|
| English | Chinese |
| fourth line servicing | 四线保障勤务 (英国空军飞机维修体制中最高一级，包括翻修、改装等) |
| fourth line servicing | 四线维修 |