air flow noise 中文意思是什麼

air flow noise 解釋
氣流噪聲
  • air : n 1 空氣，大氣。2 天空，空中。3 微風，和風。4 態度，樣子，風度，氣派；〈pl 〉高傲的架子。5 傳播，...
  • flow : vi 1 流，流動。2 （血液等）流通，循環。3 流過；川流不息；（時間）飛逝；（言語等）流暢。4 （衣服、...
  • noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
  1. Pf series air fans are new low - speed high - flow - rate tube - axial fan. wich represents advantages of high flow, light weight, low noise and lower power consumption. they are key equipment of tunnet ventilation in houses of poultry & livestock poultry

    Pf系列排風扇是新型的低速大流量軸流風機，具有流量大、重量輕、噪音低、耗電省等優點，是畜、禽舍縱向通風的關鍵設備。
  2. The porous diffusion type silencer is widely used to reduce the air flow noise because of its small volume and high noise attenuating ability. the out case of the silencer plays a very important role in reducing noise. the effect of the hole ' s shape, diameter and the distance between neighboring holes as well as the matchup between the case and the sound absorbing material tube are investigated experimentally. the relation between the out - flow noise and the gas velocity distribution is carefully studied for two different kinds of matchup between the case and the sound absorbing material tube. some useful results are gotten, which may be valuable to the design of the silencer

    多孔擴散型消聲器由於其體積小、消聲性能高而廣泛應用到排氣噪聲的降低上，其外殼對消聲器的消聲性能具有重要作用.本文對此類消聲器外殼的孔型、孔徑和孔距以及外殼同消聲材料的配合方面進行了細致的實驗研究，特別對外殼與消聲材料的配合與其排放噪聲以及外部流場之間的關系進行了探討，得到了一些有用的結論，對消聲器性能的提高具有一定指導意義。
  3. If transport vehicles fuel consumption air pollution caused by, resulting from packaging waste pollution, transportation and processing of the flow caused by noise pollution, waste of resources, urban congestion

    如運輸車輛的燃油消耗所造成的空氣污染，包裝所帶來的廢棄物污染，運輸和流通加工所帶來的噪音污染、資源浪費、城市交通堵塞等。
  4. Vortexs are observed after the beams, which greatly influence the inlet air - flow of fan, reduces the air - flux, causes noise and wastes energy

    支承結構造成的流體繞流現象在風機進口處形成渦流，造成風機風量減少，噪聲增加，浪費能源。
  5. Axial - flow ventilation fan is applicable to canging air ordissipating hear at such places as metal lurgical factory, steel rolling mill, chemical plant, refrigerating chamber, restaurant, grain depot, cultivating field, tunnel, storehousr, residence, ect. while removed the shell, it in the long echaust pipe with series connection method. the fan has complex structure, low noise, wide power selective range

    72型離心通風機可作為工三及大型建築的室內通風換氣，還可作輸入氣體，輸送空氣或其它不自燃的對人體無害的，對鋼鐵材料無腐蝕性的氣體，氣體溫度不得超過80 。
  6. Acoustics - laboratory measurement procedures for ducted silencers and air - terminal units - insertion loss, flow noise and total pressure loss iso 7235 : 2003 ; german version en iso 7235 : 2003

    聲學.管道消音器和空氣界面裝置的實驗室測量步驟.插
  7. Acoustics - laboratory measurement procedures for ducted silencers and air - terminal units - insertion loss, flow noise and total pressure loss

    聲學.管道消音器和氣體終端設備的實驗室測量步驟.插入損失流動噪聲和總壓損失
  8. The solution background that resulted from the chemical interference, would be the primary factor that effected the sensitivity. especially in the present microfluidic system, the chemical background which was usually inevitable because of the carrier solution, would be eliminated by means of using air as the carrier flow, thus a great signal noise ratio ( snr ) and a great sensitivity could be obtained

    在微量分析和超微量分析里，化學干擾產生的溶液背景是影響靈敏度的主要因素，尤其在微流控系統中，載流溶液的背景不可避免，用空氣作載流就可以消除背景而獲得高信噪比和高靈敏度。
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