“very low frequency”的概念、定义、翻译、参考文献-科学参考

单词	very low frequency
释义	very low frequency [¦ver·ē ¦lō `frē·kwǝn·sē] ^{COMMUNICATIONS} The band of frequencies from 3 to 30 kilohertz in the radio spectrum, corresponding to wavelengths of 10 to 100 kilometers. Abbreviated VLF.
随便看	instantaneous axis instantaneous carrying current instantaneous center instantaneous companding instantaneous condition instantaneous cut instantaneous description instantaneous detonator instantaneous effects instantaneous field of view instantaneous frequency instantaneous frequency-indicating receiver instantaneous fuse drag chain drag-chain conveyor drag chute drag classifier drag coefficient drag conveyor drag-cup generator drag-cup motor drag-cup tachometer drag cut drag direction drag factor

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