Destructive tests on welds in metallic materials. Hardness testing of narrow joints welded by laser and electron beam (Vickers and Knoop hardness tests)
Elements of transmission procedures and formats of service packets (messages) in wideband integrated services digital networks with fast packet switching. Requirements to procedures and formats
Maritime navigation and radiocommunication equipment and systems. Electronic chart display and information system (ECDIS). Operational and performance requirements, methods of testing and required test results
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