noise reduction noise control 中文意思是什麼
noise reduction noise control
解釋
噪聲控制-
Designing air cleaner with good performance of noise reduction is one of the effective ways for the intake noise control
設計消聲效果良好的空氣濾清器是控制發動機進氣噪聲的有效措施之一。 -
The control over the surface radiation noise ( combustion noise and mechanic noise ) is restricted by factors like the engine performance. technically such a control is quite difficult to manage and the noise reduction effect is not so encouraging
發動機表面輻射噪聲（燃燒噪聲和機械噪聲）的控制要受到發動機性能方面的種種限制，從技術角度講難度很大，且降噪量有限。 -
In this paper, it analyzes the mechanism of automobile noise polytechnic and routes of noise propagation, expoundes the research of active control and passive control of the vibration and noise reduction control technology of automobile. then it puts forward the means of automobile noise reduction in practical application
從汽車噪聲的產生機理入手，分析了噪聲傳播的途徑，從主動控制與被動控制兩方面對汽車減振降噪技術進行了研究，介紹了實際應用的降噪方法 -
The experimental research on emission control catalytic converter has solved the problem of emission control in changan vehicles, mainly by examining the exhaust emission reduction, noise suppression, physical & chemical performance and durability for sc6350c ' s converter
在排氣凈化器的試驗研究方面，本文主要通過試驗驗證了sc6350c的凈化性能、消聲性能、物化性能和使用壽命等，從而解決了長安汽車的排放問題。 -
For the theoretical research of catalytic converter, this paper has discussed and analyzed the emission reduction principle, muffler noise suppression mechanism, substrate ' s physical & chemical performance and the durability, and concluded the theoretical principles for the application of exhaust emission control converter. especially in the research of noise suppression mechanism, a new conception of " equivalent design " for catalytic converter and muffler was revealed, which provided the theoretical basis for the optimization of exhaust noise suppression and engine power loss for light - duty vehicle
在排氣凈化器的理論研究方面，本文主要從排氣凈化器的凈化機理、消聲機理、載體的物化性能以及使用壽命等方面進行了討論和分析，得出了排氣凈化器應用的理論依據，特別是在消聲機理的研究方面，本文提出了一種全新的凈化器與消聲器的等效結構概念，為輕型汽車排氣凈化消聲系統在降噪和發動機功耗方面的優化設計提供了理論基礎。 -
The most effective way to control the exhaust noise is to install an exhaust muffler. however, the actual noise reduction effect seems not as expected
控制排氣噪聲最有效的方法是加裝排氣消聲器，實際情況往往是降噪效果不很理想。 -
At that time, owing to the limited construction funds and a lack of related regulations on environmental noise and vibration, dorts referred to the gc report of environmental assessment and thus adopted two remedial measures. one was to draw up contracts stipulating the specification of the environmental control systems and train types for noise reduction. the other was the utilization of continuous seamless welded rails to attenuate vibration
由於當時客觀上國內尚未有噪音及振動相關法規，本局又受限於捷運工程經費限制，于參考總顧問報告后，在噪音控制方面：針對環控系統及電聯車訂定相關合約規范；在減少振動方面：軌道系統採用無縫長焊鋼軌。
分享友人