“ionosonde”的概念、定义、翻译、参考文献-科学参考

单词	ionosonde
释义	ionosonde [ī`än·ǝ´sänd] ^ENGINEERING A radar system for determining the vertical height at which the ionosphere reflects signals back to earth at various frequencies; a pulsed vertical beam is swept periodically through a frequency range from 0.5 to 20 megahertz, and the variation of echo return time with frequency is photographically recorded.
随便看	randomization randomized blocks randomized jitter randomized test randomizing scheme random length random line random mating random noise random number generator random numbers random ordered sample random process random pulsing random sampling random-sampling voltmeter random sequence random start random storage random structure random superimposed coding random traverse random variable random vector random vibration

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