air attenuation 中文意思是什麼

air attenuation 解釋
大氣衰減
  • 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，...
  • attenuation : n. 1. 變薄，變細。2. 減少，減弱。3. 稀釋。4. 【物理學】衰減。
  1. The paper has founded the model of laser transmission in launch process and the movement model of laser - powered vehicle, and has analyzed the influence on performance of launch system, which was raised by some factors, for instance, the performance of thruster, the attenuation in transmission, the height of mode - transform, the laser power, the air drag force, the launch height, and so on

    本文研究了激光推進微小衛星發射系統的概念和性能。建立了發射過程激光傳輸和激光推進運載器運動模型，分析了推進系統性能、大氣傳輸衰減、模式轉換高度、激光器功率、大氣飛行阻力、發射點高度等因素對發射系統性能的影響。
  2. In chapter 5, the main channel impairments, such as rain attenuation, clear air absorption and distortion due to the hpa, are covered and approaches to overcome them are suggested

    從雨衰、大氣的吸收以及高功率放大器hpa等方面對lmds系統的性能惡化等方面做了仔細的研究，並針對這些不同的情況，提出了一些建議性解決方法。
  3. This will appeal to engineer in the design process of the public building air condition system, satisfied the room function request, at the same time, proceeding sound attenuation sound absorption design of the air condition system reasonably. according to the noise of air - condition system and the pipe regenerative noise, compute demanded sound deadening capacity. designing and choosing the right type and equally outline measures

    目前，在建築設計過程中通常首先計算空調設備運行時產生的設備噪聲以及空調管道工作時產生的再生噪聲；然後根據建築設計手冊中相應的噪聲允許值的規定計算出系統所必需的消聲量；最後根據空調系統的實際情況，科學地確定適宜的消聲器類型和規格，以此達到使用空間的噪聲要求。
  4. Comparisons between the acoustic performances of the air cleaners with and without filter paper illustrated that the acoustic attenuation performance has been improved due to the existence of filter paper

    通過比較不帶濾紙和帶有濾紙的空氣濾清器的聲學性能結果表明，濾紙的考慮與否對空濾器的中高頻消聲性能有很大影響。
  5. Acoustics. attenuation of sound in air

    聲學.空氣中聲音的衰減
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