protocol unit — протокольный блок; блок реализации протокола
gimballed guidance unit — блок наведения в карданном подвесе
analog computer unit — блок аналоговой вычислительной машины
zigzag course measuring unit — блок измерения курса зигзага
interrogation unit — опрашивающее устройство; блок запросов
English-Russian big polytechnic dictionary. 2014.
de Sitter invariant special relativity — In mathematical physics, de Sitter invariant special relativity is the speculative idea that the fundamental symmetry group of spacetime is the Indefinite orthogonal group SO(4,1), that of de Sitter space. In the standard theory of General… … Wikipedia
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