“balloon astronomy”的概念、定义、翻译、参考文献-科学参考

单词	balloon astronomy
释义	balloon astronomy [bǝ`lün ǝ`strän·ǝ·mē] ^ASTRONOMY The observation of celestial objects from instruments mounted on balloons and carried to altitudes up to 18 miles (30 kilometers), to detect electromagnetic radiation at wavelengths which do not penetrate to the earth's surface.
随便看	selysn transmitter Semaeostomeae semanteme semantic analysis semantic error semantic extension semantic gap semantics semaphore sematic semeiography semelparity semen Semenov number 1 Semenov number 2 semiactive homing guidance semiactive tracking system semialgorithm semianechoic room semianthracite semiarid climate semiautomatic semiautomatic flight inspection semiautomatic ground environment semiautomatic keying circuits

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