acoustic noises 中文意思是什麼
acoustic noises
解釋
聲音干擾-
Loud, annoying noises have been a " weapon " at the personal level for millennia, but recently the world ' s security and military forces have been using a far more potent sonic weapon known as the " long range acoustic device " or lrad
尖銳的，令人感到懊惱的噪音作為一個"武器"的歷史長達數幾千年之久，最近世界安全維和軍隊有一種利用有力音波的武器"大范圍聽覺裝置"或lrad 。 -
The impact on the muffler performance is realized by the high - speed pulsation gas flow, which regenerates noises and strikes the acoustic elements of the muffler such as the pipe run, the body case and the separator plate to arouse the vibration radiated noise
氣流影響消聲器性能的主要原因是發動機排氣的高速脈動氣流再生噪聲，其次是這種氣流會沖擊消聲器的管路、殼體、隔板等聲學元件，進而激發振動輻射噪聲。 -
The controlling of traffic noises has two ways in the thesis. first, the sonic source is limited and low - noise bridge deck pavement is suggested to use. second, the route of spread is controlled and acoustic barrier is set up, especially in the viaduct
限制噪聲源，主要建議使用低噪音橋面鋪裝層；控制噪聲傳播途徑，主要採取的措施是設置道路聲屏障，尤其在城市高架橋上推薦使用。
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