{"id":"S93005445","label":"Time-domain reflectometry","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh93005445","normalized_label":"time-domain reflectometry","broader":["http://id.loc.gov/authorities/subjects/sh85042173","http://id.loc.gov/authorities/subjects/sh85124362"],"aliases":["TDR (Time-domain reflectometry)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh93005445","provider":"lcsh","revision":"2182cc8d8474fc02","taxonomy_revision":"f050b5d4780b1289","title":"Time-domain reflectometry","url":"/topics/S93005445","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"20349762281030240","address_version":"morton4x16-v1","coordinates":[0,22,11418,5120],"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}