very low frequency การใช้

• In eastern Europe, haplogroup L lineages are present at very low frequencies.
• Phone calls travel over the wire at a very low frequency.
• The 14 radio communications links, including very low frequency ( VLF ) systems.
• This consists of superimposing a precise very low frequency tone on the audio signal.
• The aircraft carries a very low frequency communication system with dual trailing wire antennae.
• The Navy now will use 12 " very low frequency " transmitters located worldwide.
• His program note says, " Very low frequency electronic waves make sounds undulate ."
• Very low frequencies can penetrated deeply into the conductor.
• Subclade Q1b-M378 is also found in China and its neighboring countries at very low frequencies.
• A "'whistler "'is a very low frequency or VLF plasma environments of the ionosphere and magnetosphere.
• Airplanes and ships used the very low frequency signals from these transmitters to determine their positions.
• Moulton says, " with very low frequency.
• The Armstrong method begins by generating a carrier signal at a very low frequency, say 500 kilohertz.
• Perhaps a house with windows open in the summer could act like a very low frequency whistle.
• There is even evidence that he could hear very high and very low frequencies late in his life.
• IEEE 1902.1 is unique as it uses a very low frequency and near-field ) as the physical mean.
• For a subwoofer to make a really visceral impact, it must move lots of air at very low frequencies.
• The advantage of a horizontal pendulum is that it achieves very low frequencies of oscillation in a compact instrument.
• Many large boats emit very low frequencies, which confuse the manatee and explain their lack of awareness around boats.
• The Wright a antigen ( Wr a ), a very low frequency blood type, was also discovered in 1953.