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。

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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。

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Objective To study the effects of extremely low frequency electromagnetic field(ELF EMF) and its combination with lead on the antioxidant system in mouse brain and liver tissues.

目的研究极低频电磁场及其与铅的联合作用对小鼠脑和肝脏抗氧化系统的影响。

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