特低频（ULF, Ultra Low Frequency）是指频带由300Hz到3000Hz的无线电波。通常于矿场内使用，也可以作勘探地质和地震用。
... ultra-low frequency 特低频 ultra-low frequency oscilloscope 超低频示波器 ; 超低频文明用语 ultra-low frequency amplifier 超低频放大器 ...
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very large scale integration (VLSI) 超大规模集成电路 very low frequency (VLF) 特低频 very-high bit rate digital subscriber line (VDSL) 甚高位率数字用户线路 ..
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... exterior illumination 室外照明 extermely low frequency 特低频 external characteristic curve 外特性曲线 ...
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特低频接收机 ultra-low frequency receiver
特低频通信 VLF communication
低频特性图示仪 low-frequency characteristic oscillograph
低频特征图示仪 low-frequency characteristic oscillograph
极低比特率视频 VLBV
低频特性 low frequency characteristic
低频特效 low frequency effects ; LFE
低比特率视频编码 low bit-rate video coding
低比特率视频通信 low bit rate video communication
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行星际激波撞击之后，紧接着地球的磁力线开始以特低频摆动。
Immediately after the impact of the interplanetary shock, Earth's magnetic field lines began wobbling at ultra low frequencies.
托雷斯 - 桑切斯，与斯特拉斯克莱德大学的同事一起，正在试验当聚合物开始冒泡的时候，用低频率的超声波照射来“激发”熔融聚合物。
Torres-Sanchez, along with colleagues at Strathclyde University, is experimenting with low-frequency ultrasonic irradiation to ‘excite’ molten polymers as they begin to foam.
具有特高的起动转矩和良好的低频特性，特别适用于有冲击负荷的场合，在这种场合下使用比一般电机节电。
With very high locked-rotor torque and excellent performance in low frequency, it is suitable for situation with shock load to save power.
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