这本书为从事设计，为研究与开发的生产的毕业生地位的工程师和科学家准备。
This book is intended for engineers and scientists of graduate status who are engaged in design, production for research and development.
这本书为从事设计，为研究与开发的生产的毕业生地位的工程师和科学家准备。
This book is intended for engineers and scientists of graduate status who are engaged in design, production for research and development.
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