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kärn suletud valupea ühendamiseks atmosfääriga (vt atmosfäärirõhkvalupea), an oil-sand core in the form of a thin round rod connecting the interior of an atmospheric riser with the above layers of sand (see: atmospheric riser)
ventilatsioonikärn . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtr/ventilatsioonik%C3%A4rn/1/est (17.07.2026)
