sound emission 中文意思是什麼

sound emission 解釋
聲發射
  • sound : adj 1 健全的;強壯的,正常的;完好的,無疵的,沒有腐爛的(船、牙齒等)。2 正確的;正當的,合法的...
  • emission : n. 1. (光、熱、氣體等的)發出,發射,射出,放射;傳播。2. (紙幣等的)發行;發行額。3. 發出物,放射物。4. 【醫學】排出;遺精。
  1. Acoustic emission is the characteristic and irreversible sound emitted by a material when it is deformed.

    聲發射是當材料變形時所發出的特殊的不可逆的聲響。
  2. A large planar microphone array, which consists of 111 microphones, was successfully applied to obtain a two - dimensional mapping of the sound sources on a landing aircraft. the focus of study in this paper is on the landing gear noise source. the spectra, directivities and sound pressure levels of flap side - edge noise of 7 narrow - board commercial aircraft and 7 wide - board commercial aircraft are presented. it is found that the landing gear noise spectrum is broadband with some single tones in some cases. the directivity of the total sound pressure level of a landing gear noise resembles that of a horizontal dipole. the level differences between the various aircraft landing gears are larger than those expected from the airspeed differences. it is thus expected that the louder noise emission of the landing gears can be reduced by redesigning

    應用由111個傳聲器組成的平面傳聲器陣列對當前流行的民用客機進場著陸過程中的機體噪聲源進行了實驗測量,本文對七架窄體客機和七架寬體客機的起落架噪聲進行了分析,得到了起落架噪聲的頻譜特性、指向特性和聲級變化.研究發現,起落架噪聲的頻譜是由寬頻隨機噪聲與一些較為明顯的單音噪聲源組成,起落架噪聲的指向性類似於一個水平放置的偶極子.不同飛機起落架噪聲的聲級相差較大,這說明可以通過重新結構設計降低起落架噪聲。
  3. Acoustics. noise emitted by machinery and equipment. determination of emission sound pressure levels at a work station and at other specified positions from the sound power level

    聲學.機械裝置及設備噪聲.工作地點和其它試驗場所按聲功率級測量聲壓級
  4. Acoustics - noise emitted by machinery and equipment - determination of emission sound pressure levels at a work station and at other specified positions from the sound power level

    聲學.機械裝置及設備發出的噪聲.在工作地點和其它試驗場所從聲功率級測量聲壓級
  5. Acoustics - noise emitted by machinery and equipment - measurement of emission sound pressure levels at a work station and at other specified positions - method requiring environmental corrections

    聲學.機械裝置及設備發出的噪聲.工作地點和其它試驗場所聲壓級的測量.測試要求環境條件的改變
  6. Acoustics. noise emitted by machinery and equipment. measurement of emission sound pressure levels at a work station and at other specified positions. method requiring environmental corrections

    聲學.機械裝置及設備發出的噪聲.工作地點和其它試驗場所聲壓級的測量.測試方法要求環境條件修正
  7. Abstract : a large planar microphone array, which consists of 111 microphones, was successfully applied to obtain a two - dimensional mapping of the sound sources on a landing aircraft. the focus of study in this paper is on the landing gear noise source. the spectra, directivities and sound pressure levels of flap side - edge noise of 7 narrow - board commercial aircraft and 7 wide - board commercial aircraft are presented. it is found that the landing gear noise spectrum is broadband with some single tones in some cases. the directivity of the total sound pressure level of a landing gear noise resembles that of a horizontal dipole. the level differences between the various aircraft landing gears are larger than those expected from the airspeed differences. it is thus expected that the louder noise emission of the landing gears can be reduced by redesigning

    文摘:應用由111個傳聲器組成的平面傳聲器陣列對當前流行的民用客機進場著陸過程中的機體噪聲源進行了實驗測量,本文對七架窄體客機和七架寬體客機的起落架噪聲進行了分析,得到了起落架噪聲的頻譜特性、指向特性和聲級變化.研究發現,起落架噪聲的頻譜是由寬頻隨機噪聲與一些較為明顯的單音噪聲源組成,起落架噪聲的指向性類似於一個水平放置的偶極子.不同飛機起落架噪聲的聲級相差較大,這說明可以通過重新結構設計降低起落架噪聲。
  8. Methods of measurement on radio receivers for various classes of emission ; part 3 : receivers for amplitude - modulated sound - broadcasting emissions

    各種發射類別的無線電接收機的測量方法.第3部分:調幅廣播發射接收機
  9. Among the 11 tested samples of battery - operated toy lanterns, four were musical. the government laboratory confirmed that these samples of battery - operated toy lanterns, which had sound - producing features, were found to have complied with the requirement of the peak emission sound pressure level prescribed in the current european standard for toys that emit continuous sound

    政府化驗所的報告還指出,在11款玩具電燈籠樣本中, 4款是可發聲的,而這些發聲玩具電燈籠樣本均符合歐洲安全標準中發聲玩具的音量標準。
  10. Acoustics - stationary audible warning devices used outdoors - field measurements for determination of sound emission quantities

    聲學.室外用的固定音響警報裝置.確定聲音發射量的現場測量
  11. Installation sound emission, gas turbine

    燃氣輪機裝置噪音釋放
  12. Acoustics - stationary audible warning devices used outdoors - part 1 : field measurements for determination of sound emission quantities

    聲學戶外用固定式聽覺報警器第1部分:聲發射量的現場測定
  13. For a long time, people are always paying attention to the problem of monitoring equipment status in manufacturing in order to know about the equipment operation status and oil quality. and they made a lot of research, such as vibration, yawp, temperature, oil, sound emission and lossless detection technology, and so on

    在製造行業中,長期以來,人們為了能及時了解設備運行狀態和油液質量,一直關注對設備狀態的監控問題,也做出了很多研究和探索,如振動監測技術、噪聲監測技術、溫度監測技術、油液分析技術、聲發射技術和無損監測技術等。
  14. The emission and receiving of calls are not only influenced by the sound - emitting apparatus and sound - receiving apparatus, but also by the body size, age, state and foraging stages of bats

    回聲定位聲波的發出和分析處理不僅受聲波發射器官及聲波接收器官結構的限制,也受蝙蝠的體型、年齡、蝙蝠的狀態、蝙蝠捕食階段等因素的影響。
  15. Methods of measurement on radio receivers for various classes of emission - receivers for frequency - modulated sound broadcasting emissions

    各種發射級別的無線電接收機的測量方法.調頻聲音廣播發射接收機
  16. Methods of measurement on radio receivers for various classes of emission. part 4 : receivers for frequency - modulated sound broadcasting emissions

    各種發射分級用無線電接收機的測量方法.第4部分:調頻聲廣播發射用接收機
  17. Methods of measurement on radio receivers for various classes of emission - part 3 : receivers for amplitude - modulated sound - broadcasting emissions

    各種發射類別的無線電接收機的測量方法.第3部分:調幅聲音廣播發射接射機
  18. Acoustics. noise emitted by machinery and equipment. measurement of emission sound pressure levels at a work station and at other specified positions. engineering method in an essentially free field over a reflecting plane

    聲學.機械和設備排放的噪聲.工作站和其它規定場所聲壓級的測量.反射平面上基本無聲波場的工程測試法
  19. The authors have observed the progress of deformation and destruction of coal bodies in the experiment, carried out the macroscopic and microscopic research of the destruction progress of coal samples under load by means of servo electro - hydraulic loading test and electromagnetic radiation and audio emission monitoring, analyzed the cracking rate of coal samples under different situation, investigated the formation and development of cracking by use of fracture and elasticity mechanics, and thus established a sound experimental basis for the prediction by using gray classification

    摘要進行了煤體變形破壞過程實驗,利用電液壓伺服加載試驗、電磁輻射和聲發射監測手段,從宏觀、細觀、微觀三個方面對煤樣受載破裂過程進行試驗研究,分析煤樣的裂隙發展速度及其所處的不同的狀態,並參照目前的預測方法提出了煤與瓦斯突出危險狀態灰色分類方法。
  20. Acoustics. noise emitted by machinery and equipment. measurement of emission sound pressure levels at a work station and at other specified positions. survey method in situ

    聲學.機械和設備噪音.工作場所或其它特殊位置聲壓級的測量.現場調查方法
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