extremely low frequency

常见例句

This falls in the extremely low frequency (ELF) range which includes frequencies up to 300 Hz.
这种频率属于极低频的频率范围内，通常极低频的频带范围也在300Hz以下。
The important frequencies for stimulating tissue repair are all in the biologically important extremely low frequency (ELF) range.
为促进组织修复的重要频率在生物的重要极低频所有（低频）的范围。
These are quasi-standing extremely low frequency (ELF) waves that naturally exist in the earth´s 'electromagnetic´ cavity, the space between the ground and the ionosphere.
这些是天然地存在于地球的“电磁”空腔——地面和电离层之间的空间中的极低频（ELF）准驻波。
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More specifically, researchers have been interested in the link, if any, between the extremely low frequency magnetic fields generated by these lines and childhood leukaemia.
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The sensors work by detecting extremely low-frequency electrical activity over a distance of 5 microns (one micron being equal to one millionth of a metre).
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