{"id":"S85053300","label":"Gas flow","description":"Here are entered works on the movement of a gas through closed or open channels or conduits. Works on the movement of underground gases from a natural source or engineered storage and barrier system upward toward the surface of the Earth are entered under [Gases--Migration.]","source_url":"https://id.loc.gov/authorities/subjects/sh85053300","normalized_label":"gas flow","broader":["http://id.loc.gov/authorities/subjects/sh85001295","http://id.loc.gov/authorities/subjects/sh85053291"],"aliases":["Flow of gas","Gases, Flow of"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85053300","provider":"lcsh","revision":"db33196d535e104f","taxonomy_revision":"f050b5d4780b1289","title":"Gas flow","url":"/topics/S85053300","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10090319655232488964","address_version":"morton4x16-v1","coordinates":[0,20,18237,53248],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}