kHz
kHz
abbr. 千赫（等于kilohertz）
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- abbr. 千赫（等于kilohertz）
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1. IEEE standard for safety levels with respect to human exposure to radio frequency electromagnetic fields, 3 kHz to 300 GHz.
“电机和电子工程师学会人体接触射频电磁场安全水平标准：3千赫至300千兆赫”。
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2. The team then took a fundamental tone pitched below 5 kHz and digitally filtered it to leave just the overtones above 6 kHz.
研究小组接着选取一个音调低于5千赫兹的基本音，滤掉低于6千赫兹的所有声音。
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3. And melodies are rarely, if ever, composed with fundamental tones above 5 kHz, so the brain may be unable to recognise this unfamiliar class of melodies.
而旋律很少由超过5千赫兹的基本调构成，大脑可能因此无法分辨这类陌生的旋律。
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