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Directorate of Research and Development
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一般
研究规划局
美
directorate of research and development
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经济
研究开发规则局
英语 词库
Directorate of Research and Development
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军队, 缩写
DRD
Directorate of Research and Development
:
9 短语
, 3 学科
一般
5
大不列颠
2
航空
2
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