單字R and D的中文意思與發音


R and D


    abbr 縮寫 = (commerce 商) research and development 研究與開發







單字R and D的中英文例句與用法


隨著環保意識的不斷加強,人們更加重視對聚合物無鹵阻燃材料的開發。
People pay more attention to the r and d on fr materials for the sake of environment protection.
有沒有聽說過犯人物品保管室丟東西?
You ever hear of anything being stolen from r and d?

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