“aerial observation”的概念、定义、翻译、参考文献-科学参考

单词	aerial observation
释义	aerial observation [`e·rē·ǝl ´äb·zǝr`vā·shǝn] ^ORDNANCE Observation from aircraft of artillery fire.
随便看	frequency-response trajectory frequency run frequency scan antenna frequency scanning frequency-selective device frequency separation multiplier frequency separator frequency shift frequency-shift converter frequency-shift keyer frequency-shift keying frequency-shift modulation frequency-shift transmission frequency-slope modulation frequency spectrum frequency splitting frequency stability frequency stabilization frequency standard frequency study frequency swing frequency synthesizer frequency table frequency telemetering frequency theory

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