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Тechnology development 订购在 鞍山
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Тechnology development 订购在 鞍山
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介绍
The phrase research and development (also known as R and D or R&D), according to the Organization for Economic Co-operation and Development, refers to "creative work undertaken on a systematic basis in order to increase the stock of knowledge, including knowledge of man, culture and society, and the use of this stock of knowledge to devise new applications".
返回上一级在部分中 "工艺制定"

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