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GOST R 25645.157-94
Earth`s lower ionosphere. Model of global distribution of concentration and effective collision frequency of electrons for VLE-LF radio forecast
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€10
GOST 14765-69
Straight stroke working mechanisms SSI. Joint points for controls. Sit dimensions
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€10
GOST R 8.973-2019
State system for ensuring the uniformity of measurements. National standards for verification procedures. General requirements for the content and design
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€10