extremely low frequency [通信] 极低频 ; 磁场 ; 超低频磁场 ; 超低频
extremely low frequency electromagnetic fields 极低频电磁场 ; 正极低频电磁场 ; 指极低频磁场
extremely low frequency antenna 极长波天线
extremely low frequency emission 超低频放射 ; 超低频发射
extremely low frequency magnetic field 极低频磁场 ; 观察慢性工频磁场 ; 频磁场 ; 级的极低频磁场
ELF extremely low frequency 极低频
extremely low frequency propagation [电子] 极低频传播
Extremely Low Frequency Electromagnetic Field 研究极低频率电磁场 ; 观察极低频电磁场 ; 极低频率电磁场
ELF F extremely low frequency 极低频
Control Source Extremely Low Frequency 大功率人工源极低频电磁技术
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。
No data relevant to the carcinogenicity of static electric or magnetic fields and extremely low-frequency electric fields in experimental animals were available.
静态电磁场和超低频电场对实验室动物致癌性的相关数据未提供。
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