英语词汇“extremely low frequency”的翻译、意思、用法、释义-英汉汉英双解词典

单词	extremely low frequency
释义	extremely low frequency iksˈtri:mliləuˈfri:kwənsi 短语¹⁴⁴⁹⁷²⁺² 基本英英近义反义例句极低频 Noun: below 3 kilohertz近义词 ELFelf: 小精灵 Objectives To investigate intensity of extremely low frequency magnetic field ELFMF emitted from cathode-ray tubes CRT of monitors in various directions and to find ways to avoid its influence. 目的研究电脑阴极射线管显示器正前方不同距离和不同方位的极低频磁场 ELFMF强度，就如何减少ELFMF的影响提出初步建议。 iciba 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。 yeeyan
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