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DOI: 10.3969/j.issn.1003-1375.2004.04.018
The development of special geomagnetic DC-1 digital clock
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Publication Date：2004-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：2( 62-63 )
NORTH CHINA EARTHQUAKE SCIENCES

NORTH CHINA EARTHQUAKE SCIENCES

ISTIC
ISSN：1003-1375
Year, Vol.(Issue)：2004,22(4)
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