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人们在社会生产和科学研究中,将已获得的经验或创造的知识进行首次加工(固化)并公开发表而形成的符号记录。又称原始文献。
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environmental radioactivity evaluation
environmental radioactivity level investigation
environmental radioactivity monitoring
environmental radiochemistry
environmental referenced frame
environmental regionalization
environmental regionalization map
environmental regulation
Environmental regulation of non-point sources
Environmental regulation of point sources
environmental rehabilitation
environmental remediation
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environmental remote sensing
environmental requirements for origin of non-environmental pollution aquatic products
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