low-frequency造句
1. Whales use low-frequency calls to locate each other.
2. The low-frequency motions are considered to be meteorologically significant.
3. Purpose: For low-frequency power amplification.
4. The high-precision constant current source low-frequency rectangular wave excitation is adopted to ensure the stable magnetic field.
5. Low-frequency pseudo Rayleigh wave (high velocity)can be used to estimate shear wave attenuation, then permeability in original state formation.
6. Of particular interest are waves that simulate low-frequency motions and that help to establish and maintain the equatorial current system.
7. The proposed method is based on low-frequency signal injection, where a low frequency stator current signal is injected and the corresponding angle error is detected to estimate the rotor speed.
8. And the low-frequency broadband noise of the propeller is produced by the interaction between the blades and stern turbulence field.
9. Differential Pulse Code Modulation is adopted for the low-frequency sub-images with most energy, which are called the 1st level.
10. Duke-Honorable Series: Advanced ignition, Constant power output, Low-frequency component, 8-years over-long quality guarantee period.
11. In the paper, the low-frequency information which reflects the trend of stock price change is extracted using wavelet MRA and the Mallat method, and the time of stockjobbing is analyzed.
12. For example, the low-frequency gain of an integrator can be very high, generally exceeding the measurement range of conventional test and measurement equipment.
13. Besides, the improving of observation condition of low-frequency events is discussed.
14. According to mechanism of low-frequency broadband noise of the propeller, theoretical analysis method is given and numerical calculation of the noise is worked out as well.
15. Effect of damper windings and magnetic saturation of synchronous machine on LFO(Low-Frequency Oscillation) damping are studied with eigen analysis method.
16. The frequency of the low-frequency field and the relative intensity of the coupling strength for the transitions can affect spontaneous emission from the atom.
17. Turbulence produced by rapidly moving columns of air also generates low-frequency sounds.
18. Based on the simple prior knowledge, an approach named as multi-scale low-frequency curve analysis based on standard orthonormal wavelets is proposed.
19. Based on these, a laboratory-scale jury test which adopts Semantic Differential method and an auxiliary "5-points, 4-ranks" rating scale for low-frequency pure tone, was carried out.
20. Some residents and visitors in the small city of Taos, New Mexico, have for years been annoyed and puzzled by a mysterious and faint low-frequency hum in the desert air.
21. Ultra-high-frequency (UHF) monitoring approach is focused on recent years because of its effectiveness to avoid low-frequency noises and pulse interference from corona.
22. It was determination a choice range of parameters about a low-frequency vibrating sieve.
23. The paper analyzes the wavelet resolving principle and image encoding technique and puts forward the adoption of Huffman-encoding on low-frequency of wavelet transformation.
24. The detailed investigation of the connection of primary frequency regulation with the low-frequency oscillations was done . in this paper .
25. Some residents or visitors in the smwhichle country of Taos, New Mexico, get to seasons being annoyed or puzzled by a mysterious or faint low-frequency hum in the desert waterdrop.
26. The other problem is that submarines receive messages using low-frequency radio waves that can penetrate water, but only a few characters per second can be transmitted at these frequencies.
27. Used in this paper is to design a general low-frequency differential transformer signal generator.
28. The paper also describes the key problems e. g. low-frequency trigger signal, speed feedback, low-frequency switch-over and low-frequency start, summarizes the experience in technica...
29. The paper also describes the key problems e. g. low-frequency trigger signal, speed feedback, low-frequency switch-over and low-frequency start, summarizes the experience in technical renovation.
30. Based on the random variation of cavity length, characteristics of the medium index and mode competition effect, low-frequency beat and noise continuums are explained.
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