acoustic loss 中文意思是什麼

acoustic loss 解釋
聲損耗
  • acoustic : adj. 1. 聽覺的；聲學的。2. 助聽的；傳音的。3. 原聲的，不經過電子設備傳聲的。adv. -tically 在聽覺上；在聲學上。
  • loss : n. 1. 喪失；丟失，遺失。2. 減損，損失，虧損（額）；損耗；減少，下降。3. 失敗；輸掉。4. 錯過；浪費。5. 損毀；【軍事】傷亡；〈pl. 〉 傷亡及被俘人數。
  1. Surface transverse wave has the 1. 6 high frequency than rayleigh type surface acoustic wave ( using the same technology the frequency of devices of stw has about 1. 6 high frequency than rayleigh type surface acoustic wave ). the paper introduces the theory, design parament, technology and result expeiment of surface acoustic wave ( includes rayleigh surface acoustic wave and surface transverse wave, simple stw ) with low insertion loss, high q and researches the high frequency, low phase noise oscillator with 1ghz stw resonator as frequency element. and describes measurement method and finally experimantal result of the low phase noise surface acoustic wave oscillator

    本文研究了以低損耗、高q值聲表面波（其中包括聲表面瑞利波- - rayleighsurfaceacousticwave ，和聲表面橫波等）諧振器的工作原理、設計參數、製作工藝及其實驗結果，並且研究了以1ghzstw諧振器為頻控元件的高頻率、低相位噪聲聲表面波振蕩器，以及低相位噪聲聲表面波振蕩器的測試方法和最終的測試結果。
  2. As acoustic leakage detection technology for power plant boiler tubes can detect small leakages early in boiler tubes before they become catastrophic leakages and reduce economic loss resulted from disarranged stopping of boilers, many research institutes have begun to pay attention to it

    =鍋爐爐管泄漏聲學監測技術由於能夠在電站鍋爐爐管發生輕微泄漏時就可監測到泄漏的發生情況，減少由於非計劃停機帶來經濟損失，因此引起了國內外許多研究機構的重視。
  3. The design testing piezoelectric material surface acoustic during the experiment process in the paper has several merits : convenience, efficiency, no loss, fastness. and they can be realized. the design applies material piezoelectric response and anti - piezoelectric response to stimulus and receive saw, and apply the method of testing resonator frequency to calculate saw tested speed, simultaneously contrast the actual test result about different material to typical value in the paper

    在本論文的研究實驗過程中，給出了一種方便、有效、無損、快捷的檢測壓電材料表面聲速的設計與實現，該設計中運用材料的壓電效應和逆壓電效應激勵和接收saw ，並運用檢測諧振頻率的方法計算測量saw速度，同時給出了對不同材料的實際測試結果以及與資料典型值的對比。
  4. Adaptive echo cancellation provides a comfortable solution whose concept is extremely simple : if an exact electric replica, parallel to the lrm ( loudspeaker - room - microphone ) system is provided, the decoupling of loudspeaker and microphone can be achieved without any restrictions to the electric acoustic system and - more important - without any loss of convenience to the user

    為解決聲回波對消問題（ aec ） ，人們提出了各種方案，傳統的方法能在一定程度上抑制回聲，但存在抑制比較小，或需要專用房間，限制通信者移動等缺點。不能給通信者提供?個完全舒適的通話環境。
  5. The difficulties of interpretation since the significance of any event followed its occurrence as variably as the acoustic report followed the electrical discharge and of counterestimating against an actual loss by failure to interpret the total sum of possible losses proceeding originally from a successful interpretation

    事件發生后，它所帶來的結局各有不同，正如放電后傳來的音響那樣難以解釋。即使原來做的是獲勝的解釋，由於對萬一輸了時的損失總額不能正確地加以估價，究竟對現實的損害可能有多大，心中是沒有譜兒的。
  6. The propagation characteristics of underwater acoustic channels and their influences on long - range information transmission are studied thoroughly. based on the sonar equation, the optimal frequency band is abtained. from the calculation about transmission loss, the source level is forecasted. based on the random time varying channel theory, the fading characteristics of long - range underwater acoustic channels are analyzed

    系統、深入地研究了水聲通道特性及其對水聲遠程信息傳輸系統的影響；從聲納方程出發，確定了系統的最佳工作頻段；在聲傳播損失計算的基礎上，給出了聲源級的預報；基於時變通道理論，描述了遠程水聲通道的衰落特性。
  7. At present the manufacture of surface acoustic wave use the technology of the final submicron. a series of the devices of low insertion loss, high q saw rayleigh surface acoustic wave resonators or stws that insertion loss has less than 5db, load quality factor ( ql ) is more than 1000 on the quartz piezoelectric with zero of first temperature factor in the research. these difference frequencies are 60mhz, 280mhz, 739mhz and 1ghz of normal frequency and at also surface acoustic wave. using 1. 25db noise factor amplifier, careful design curcuit, good setting printed curcuit board, and using the 1ghz surface transverse wave resonator as frequency element, researching the low phase noise surface acoustic wave with sideband phase noise near ? 120dbc / hz deviating 1khz on carrier, spurious suppress with 80db

    本研究採用一階溫度系數為零的壓電石英基片上製作出損耗小於5db 、有載品值因素（ ql值）超過1000的一系列低損耗、高q值聲表面波rayleigh波或stw諧振器，頻率分別為60mhz 、 280mhz 、 739mhz和1ghz等不同頻率的高性能聲表面波諧振器。並採用噪聲系數為1 . 25db的低噪聲系數放大器，精心設計電路，優化設計布置印製電路板，用標稱頻率為1ghz的聲表面波諧振器為頻率控制元件，製作出在偏離載頻1khz處的單邊帶相位噪聲近- 120dbc / hz 、雜波抑制達80db以上的低相位噪聲聲表面波振蕩器。
  8. Microphone - in - real - ear and acoustic test fixture methods for the measurement of insertion loss of circumaural hearing protection devices

    測量頭戴聽力保護裝置插入損耗的真耳內擴音器和聲試驗器具試驗方法
  9. Cbb22 - i metallized polypropylene capacitor is used in electronic equipments, such as acoustic apparatuses which are high standard in capacitance stability 、 loss 、 insulation resistance in ac & dc

    適用於電子設備中的容量穩定性、損耗、絕緣電阻要求高的交直流電路中。
  10. Cbb22 - ii metallized polypropylene capacitor is used in electronic equipments, such as acoustic apparatuses which are high standard in capacitance stability 、 loss 、 insulation resistance in ac & dc

    Ii適用於電子設備中的容量穩定性、損耗、絕緣電阻要求高的交直流電路中。
  11. Cbb20 metallized polypropylene capacitor is used in electronic equipments, such as acoustic apparatuses which are high standard in capacitance stability 、 loss 、 insulation resistance in ac & dc

    Cbb20適用於電子設備尤其是音響設備中的容量穩定性、損耗、絕緣電阻要求高的交直流電路中。
  12. Impaired speech production and perception ; hearing loss, aphasia, neurogenic disorders, laryngeal disorders, other impairments ; aids for speech and hearing - impaired. speech and language development in children ; acoustic analysis of children ' s speech

    23受損的語音產生和感知；聽力衰減、失語癥、神經的失序、喉頭的失序及其他的損傷。對于語言能力和聽力受損的協助。兒童語言和表達能力的發展。兒童語音在聲學上的分析。
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