@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @prefix grg: . @prefix iop: . @prefix ns0: . @prefix ns1: . @prefix owl: . @prefix pav: . @prefix prov: . @prefix puv: . @prefix qudt: . @prefix rdf: . @prefix rdfs: . @prefix reg: . @prefix semapv: . @prefix skos: . @prefix sssom: . @prefix void: . skos:broader . skos:narrower . skos:narrower . skos:narrower . skos:narrower . skos:related . skos:member . skos:altLabel "" ; skos:broader , , , , ; skos:definition "An energy source with a frequency up to 60 Hz (sampling interval higher than 8 msec) plus a single string of towed hydrophones (streamer) that determine geologic structure by detecting waves reflected by subsurface layers."@en ; skos:inScheme , ; skos:narrower ; skos:notation "SDN:L05::371" ; skos:note "accepted"@en ; skos:prefLabel "60 Hz top-bandwidth single-channel seismic reflection systems"@en ; skos:related , . skos:related . skos:related . skos:related . skos:narrower . skos:broader . skos:narrower . skos:narrower . skos:narrower . skos:narrower . skos:narrower .