заранее установленный
• A relief valve set at a predetermined (or prearranged, or preassigned, or preset, or specified) working pressure spills the excess back to the reservoir.
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Русско-английский научно-технический словарь
на Gufo.me
• A relief valve set at a predetermined (or prearranged, or preassigned, or preset, or specified) working pressure spills the excess back to the reservoir.