This falls in the extremelylowfrequency (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。
2
The important frequencies for stimulating tissue repair are all in the biologically important extremelylowfrequency (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。
3
Objective To study the effects of extremelylowfrequency electromagnetic field(ELF EMF) and its combination with lead on the antioxidant system in mouse brain and liver tissues.