elf extremely low frequency 中文意思是什麼
elf extremely low frequency
解釋
極低頻-
Aims : to investigate the relationship between extremely low frequency magnetic field ( elf - mf ) exposure and mortality from leukaemia and brain tumour in a cohort of swiss railway workers
目的:探討瑞士鐵路工人世代之極低頻磁場暴露與白血病及腦瘤死亡率的關系。
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