Beschreibung
Time is a basic physical quantity. Time is an important technological support for scientific research and national construction. Many major countries in the world have their own independent standard time and perfect time service system. This book mainly introduces the composition and working principle of the BPL and BPM system, as well as the role of the BPL and BPM system in national construction and scientific research, and tries to answer some questions about time measurement, time characteristics and time application in popular language. ABSTRACTING & INDEXING BEIJING TIME-BPL AND BPM NATIONAL TIME SERVICE SYSTEMS is covered by the following services: Baidu Scholar Bayerische Staatsbibliothek BDS BoD Bowker Book Data Ciando CNKI Scholar (China National Knowledge Infrastructure) Dimensions
Herstellerkennzeichnung:
Walter de Gruyter GmbH
De Gruyter GmbH
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10785 Berlin
DE
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