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民用航空器维修标准。第3单元:地面维修设施。第81部分:机械加工车间。
Maintenance standards for civil aircraft. Unit 3: ground maintenance facilities. Part 81: machining shop.
youdao
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民用航空器维修标准。第3单元:地面维修设施。第81部分:机械加工车间。
Maintenance standards for civil aircraft. Unit 3: ground maintenance facilities. Part 81: machining shop.
youdao