| 单词 | hertz |
| 释义 | hertz noun[C] uk/hɜːts/us/hɝːts/pluralhertz(written abbreviationHz)aunitformeasuringthenumberofcyclesthathappenevery second, usedespeciallyinelectronics 赫兹（频率单位）See also kilohertz megahertz Miscellaneous units of measurement
You can also find related words, phrases, and synonyms in the topics: Electricity & electronics hertz| American Dictionaryhertz noun[U] us/hɜrts/(abbreviationHz)physics thestandardunitformeasuringthefrequency(= therateofrepetition)of awave. One hertzequalsonerepetitionpersecond. Examplesofhertzhertz Visual observations of the turbulent fluctuations suggested that a low frequency response flat down to 0.2hertzwould have been useful. From theCambridge English Corpus This is virtually always the case for real-time simulations with refresh rates of several hundredhertz. From theCambridge English Corpus Since the 1960s it was recognised that the alpha, beta and theta types have a link to differenthertzlevels that can be associated with different mental states. From theCambridge English Corpus This frequency varies linearly with chemical concentration and will change by up to several hundredhertzwhen exposed to a strong concentration of the target chemical. From theCambridge English Corpus It is not cost effective to convert a complete railway system to the standard of 25,000 volts at 50hertz, which is the preferred methodology nowadays. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 This jet of gas occurs for a very brief duration, about 0.02 seconds, and at high frequency: 4-11hertz. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.High-frequency (typically 20,000hertz) ultrasonic vibrations are locally applied to metal foil materials, held together under pressure, to create a solid-state weld. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Since the numerator is usually inhertz, and the denominator in megahertz, delta is expressed in ppm. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The transducers were temporarily altered for this test to transmit sound at 50hertz, which is lower than their normal operating frequency. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.A 1200hertzamplitude modulated sine wave is pressed into the left and right channels with a phase difference of 90 degrees. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The signal falls off exponentially as a function of frequency, so frequencies around 1-10hertzare frequently used. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The audible range of sound is 20hertz-20 kilohertz. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.When variable "x" has units of seconds, "f" has units ofhertz. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The rate at which the air pressure oscillates is the frequency of the tone, which is measured in oscillations per second, calledhertz. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.In general small analytes have megahertz frequencies while larger analytes can be only a few hundredhertz. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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