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Aviation
containing
Development Activity
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English
Chinese
aviation development test activity
航空研制试验部门
aviation research and
development activity
航空研发院
aviation research and
development activity
航空研究与开发院
(美国)
computer integrated development, Manufacturing and support activities
计算机集成研制、制造和支援活动
development activity
开发活动
development activity
开发工作
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