high-frequency sterilizer

high-frequency sterilizer: Пищевая промышленность: стерилизатор, нагреваемый токами высокой частоты

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chemical element — Introduction also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. This article considers the… … Universalium
Infection control — is the discipline concerned with preventing nosocomial or healthcare associated infection, a practical (rather than academic) sub discipline of epidemiology. It is an essential, though often under recognized and under supported, part of the… … Wikipedia

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