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valupea (üldjuhul suletud valupea), mis toidab valandit atmosfäärirõhku ületaval rõhul; ülerõhk saavutatakse sisestades valupeasse valutemperatuuril gasifitseeruv materjal (vt valupea; vrd atmosfäärirõhkvalupea), a blind riser into which a gas-producing charge is placed, prior to filling the mold with molten metal (see: riser; compare: atmospheric riser)
газовая прибыль . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtr/%D0%B3%D0%B0%D0%B7%D0%BE%D0%B2%D0%B0%D1%8F%20%D0%BF%D1%80%D0%B8%D0%B1%D1%8B%D0%BB%D1%8C/1/rus (05.10.2026)