美国国家标准与技术研究院 United States Yizuo Media

漢德百科全書 | 汉德百科全书

Chinese — German

United States

Maryland-MD Catalog

United States Department of Commerce National Institute of Standards and Technology,NIST Catalog

Science and technology *World famous research institutions

美国国家标准与技术研究院

guo2 jia1 biao1 zhun3 yu3 ji4 shu4 yan2 jiu1 yuan4

1 2 years ago

First author

National Institute of Standards and Technology,NIST

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Author

6 years ago 2 years ago

Author

6 years ago 2 years ago