transcranial low frequency electrical stimulation  经颅低频电刺激

low frequency electrical magnetic field  低频电磁铸造

low frequency stimulation  低频电刺激

low-frequency electrical porcelain  低频电瓷

3060 day low-frequency oscillation  30-60天低频振荡

3-phase low frequency  三相低频

active low-frequency filter  有源低通滤波器

Adjustment to wavelet low-frequency component  小波低频分量微调

Analysis of Low-frequency Protection Test  浅析低频保护测试

anomaly of extra-low-frequency electromagnetic wave  超低频电磁异常

Atmospheric low-frequency oscillation  大气低频振荡

Atmospheric Low-frequency system  低频天气系统

Atmospheric low-frequency wave  大气低频波

atmospherical low-frequency oscillation  大气低频振荡

atmospheric-pressure radio-frequency low-temperature plasma  常压射频低温等离子体

automatic low frequency load shedding relay  自动低频减载继电器

braking with low frequency  低频制动

Broad Band Low Frequency  低频宽带

Broad Band Low Frequency Amplifier  宽带低频放大器