释义 |
airborne profile recorder
airborne profile recorder[′er‚bȯrn ′prō‚fīl ri‚kȯrd·ər] (engineering) An electronic instrument that emits a pulsed-type radar signal from an aircraft to measure vertical distances between the aircraft and the earth's surface. Abbreviated APR. Also known as terrain profile recorder (TPR). AcronymsSeeAPR |