“airborne profile recorder”的概念、定义、翻译、参考文献-科学参考

单词	airborne profile recorder
释义	airborne profile recorder [`er´bȯrn `prō´fīl ri´kȯrd·ǝr] ^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).
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