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r and d project造句

"r and d project"是什麽意思   

例句與用法

  1. important progress was made in major r and d projects, including those to design and develop advanced integrated circuit chips, third-generation mobile communications, high-performance composite materials, and high-grade, digitally controlled machine tools
    在科技方面,加強了國家創新體系基礎研究和基礎設施建設。集成電路芯片設計開發第三代移動通信高性能復合材料高檔數控機床研制等重大科技專項取得重要進展。

相關詞匯

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  4. "r and d"造句
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