专业音频术语中英文对照（L）_专业音频术语中英对照... ... Level l 电平，水平，级 LF low frequency 低频，低音 LFB B local feedback 本机反馈，局部反馈 ...
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The ratio of the low frequency to high frequency components in HRV power spectrum(LF/HF) fluctuates with the change in the sleep stages.
HRV频谱中低频和高频成分的比值（LF/HF）随着睡眠深度的变化而波动。
In terms of operation frequency, RFID systems can be divided into four categories: low frequency (LF), high frequency (HF), ultra high frequency (UHF), and microwave.
根据工作频率来分，RFID系统可以分为低频，高频，超高频和微波四个波段。
The 18 "low frequency driver combines 95 dB sensitivity with 1000 Watts (continuous) power handling, to deliver LF sound pressure levels well beyond those typical of systems its size."
在18“低频驱动器结合95分贝100 0瓦灵敏度(连续)功率处理能力，能够提供远远超过低频声压水平的典型系统的大小。”
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