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Английский тезаурус
STRAIN [streɪn] сокр.
сокр., эл.	structural analysis-interactive
strain [streɪn] глаг.
мед.	A group of organisms, such as bacteria or viruses, that belong to the same species and share certain characteristics not found in other members of the species. For example, HIV can mutate into different strains, with each strain having a different type of resistance to antiretroviral ARV drugs.