| 单词 | frequency |
| 释义 | frequency (friːkwənsi ) Word forms: frequencies 1. uncountable noun The frequency of an event is the number of times it happens during a particular period. The frequency of Kara's phone calls increased rapidly. [+ of] The tanks broke down with increasing frequency. Synonyms: recurrence, repetition, constancy, periodicity 2. variable noun In physics, the frequency of a sound wave or a radio wave is the number of times it vibrates within a specified period of time. You can't hear waves of such a high frequency. ...a frequency of 24 kilohertz. [+ of] ...low frequency waves. Collocations: frequency of visits Shipping indicators, which analyse time spent in ports and the frequency of visits, showed a 'surprisingly good correlation' with official trade data. Times, Sunday Times Anticholinergics like oxybutynin calm an irritable bladder and can help to reduce the frequency of visits to the loo, as well as the need to get there in a hurry. Times, Sunday Times The frequency of visits will decrease over time. Retrieved from Wikipedia CC BY-SA 3.0 It can be found using many factors, such as the size, the frequency of visits, etc. Retrieved from Wikipedia CC BY-SA 3.0 With the change in rates and caseload came changes as to the minimum frequency of visits. Retrieved from Wikipedia CC BY-SA 3.0 The headphones boast ultra-low resonance metal alloy housings, which produce more stability in the upper and lower frequency range. Times, Sunday Times He suggested that companies limit the frequency range of their speakers so that they cannot emit inaudible sounds. Times, Sunday Times It generates a very wide frequency range. The Sun Vibrations in the audible frequency range are perceived by humans when air vibrates against their eardrum. Retrieved from Wikipedia CC BY-SA 3.0 The narrower the frequency range, (i.e. the higher the saturation) the simpler a photovoltaic cell can be designed to convert it to electricity. Retrieved from Wikipedia CC BY-SA 3.0 Individual players come and go with great frequency. Times,Sunday Times Instead, the data showed a great frequency of extreme variations. Retrieved from Wikipedia CC BY-SA 3.0 They found that 33 events were mentioned with great frequency. Retrieved from Wikipedia CC BY-SA 3.0 The list contains 570 semantic fields which were selected because they appear with great frequency in a broad range of academic texts. Retrieved from Wikipedia CC BY-SA 3.0 In addition, words that occur near the target word in great frequency can be selected as seed collocations representative. Retrieved from Wikipedia CC BY-SA 3.0 Operators say it will increase frequency and reliability but scores of services were cancelled yesterday. The Sun To increase frequency, add spots or insertions to the schedule. Retrieved from Wikipedia CC BY-SA 3.0 Reduction of communication costs increase frequency and duration of communication, and increase social capitals bonding and bridging. Retrieved from Wikipedia CC BY-SA 3.0 In the present climate, such decisions are likely to be made with increasing frequency. Times, Sunday Times It has been used with increasing frequency since the recession took hold. Times, Sunday Times The increasing frequency of storms, rising sea levels, coastal erosion and collapsing drains conspire against dry feet and harvestable crops. Times, Sunday Times (2013) This would contribute to an increased frequency of midlatitude droughts in both hemispheres. 2007, 'Observed poleward expansion of the Hadley circulation since 1979', Atmospheric Chemistry and Physics Her polycythemia symptoms and hematocrit levels continued to worsen from 2007 to 2011, with an increased frequency of phlebotomies. 2018, 'A novel splicing site IRP1 somatic mutation in a patient with pheochromocytoma and JAK2 V617F positive polycythemia vera: a case report', BMC Cancer If they become startled, reduce the frequency and build it back up again. The Sun Reduce the frequency of complex changes to the tax code. Times, Sunday Times Lifelong runners often find they have to reduce the frequency of their training sessions to allow their bodies to recuperate. Times, Sunday Times Lowering and enforcing speed limits would reduce the frequency and severity of vehicle collisions. Times,Sunday Times One study even suggests that mobile phone use by doctors may reduce the frequency of medical errors. Times, Sunday Times As with the violin string, the note that you hear depends on the resonant frequency of the bubble. Times, Sunday Times When two objects have the same resonant frequency, they exchange energy without having an effect on surrounding objects. Times, Sunday Times Axions matching the resonant frequency of the cavity decay into microwave photons. Retrieved from Wikipedia CC BY-SA 3.0 The resonant frequency, energy of the absorption, and the intensity of the signal are proportional to the strength of the magnetic field. Retrieved from Wikipedia CC BY-SA 3.0 The hammers rebound, and the strings continue to vibrate at their resonant frequency. Retrieved from Wikipedia CC BY-SA 3.0 After detection, a single-transistor stage amplified the sound frequency. Retrieved from Wikipedia CC BY-SA 3.0 Place of maximum vibration amplitude depends on the sound frequency. Retrieved from Wikipedia CC BY-SA 3.0 It has eight custom-tuned drivers, two 0.5in tweeters, two 3in mid-range drivers and four 2in bass drivers producing separate sound frequencies. Times, Sunday Times The electrodes then stimulate the fibres of the auditory nerve and the brain deciphers the sound frequencies as it would if the information were coming from working cochlear hair cells. Times, Sunday Times He made the submariners think about sound frequencies and how they travel in salt water. Times, Sunday Times One study shows him to have the highest stride frequency ever recorded, faster than 100 metres sprinters. Times, Sunday Times If you are using speed/power walking as a fitness technique with high intensity training-style spurts, concentrate on increasing stride frequency, not stride length, and pumping your arms. Times, Sunday Times To run faster, spiders increase their stride frequency. Retrieved from Wikipedia CC BY-SA 3.0 As a result of the nonlinearity, the vibration frequency can change, depending upon the system's displacement. Retrieved from Wikipedia CC BY-SA 3.0 Adsorption of molecules on the nanorods can be detected through variation of the nanorods properties, such as electrical conductivity, vibration frequency, mass, etc. Retrieved from Wikipedia CC BY-SA 3.0 When the vibration frequency exceeds a critical value, the flat hydrostatic surface becomes unstable. Retrieved from Wikipedia CC BY-SA 3.0 The lower wavelength limit was chosen to encompass the highest known vibration frequency due to a fundamental molecular vibration. Retrieved from Wikipedia CC BY-SA 3.0 The natural vibration frequency of the flow tubes depend on the combined mass of the tube and the fluid contained in it. Retrieved from Wikipedia CC BY-SA 3.0 The station did transmit on medium wave frequency for a while but this was closed down in 1992. Retrieved from Wikipedia CC BY-SA 3.0 Increased wave frequency due to shorter fetch results in less rest between waves and sets of waves. Retrieved from Wikipedia CC BY-SA 3.0 The invention related to a technique of bombarding human bodies with low-frequency electromagnetic waves and controlled the wave frequency using circuit means. Retrieved from Wikipedia CC BY-SA 3.0 The failure of the line to transfer power at the standing wave frequency will usually result in attenuation distortion. Retrieved from Wikipedia CC BY-SA 3.0 At a single point in space, the circularly polarized-vector will trace out a circle over one period of the wave frequency, hence the name. Retrieved from Wikipedia CC BY-SA 3.0 Translations: Chinese: 频率 Japanese: 頻発 |
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