Hydroelectric power plants. Hydrotechnical structures. Underwater technical survey of hydraulic structures and adjoining areas of unstrengthened channel. Norms and requirements
Information technology. International standardized. Profiles TB, TC, TD and TE. Connection-mode transport service over connection-mode network service. Part 9. Subnetwork-type dependent requirements for network layer, data link layer and physical layer concerning permanent access to a paket switched data network using virtual calls
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