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observational concepts » observation concepts, observational concerns, observational conceptual
observational economy » observational astronomy, observational cohort, observational errors
observational cinema » observational clinical, observational context, observational clues
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1
Published 2024
Springer Nature Switzerland
Table of Contents: “... digital currencies (CBDC): current situation and development prospects in the global economy...”
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2
by Yi, Hao
Published 2023
MDPI - Multidisciplinary Digital Publishing Institute
“... the traditional concept of subtractive manufacturing. It has revolutionized advanced integrated structural design...”