jet noise 中文意思是什麼
jet noise
解釋
噴流噪聲-
A requires all subsonic narrow - bodied jet aircraft flying in and out of hong kong to meet with the most stringent international noise standard ; and requires all subsonic jet aircraft taking off or landing in hong kong to be certificated in accordance with international established procedures
A規定所有亞音速狹體噴射機必須符合最嚴格的國際噪音標準，方可在香港升降及b規定所有亞音速噴射機必須遵照國際民航公約規定程序領取證明書，方可在香港升降。 -
The adoption of the variable pump is a breakthrough of the water cutting jet which solved the previously problems in suing the home - made products, such as piston pump filling - up, noise, high - consumption of energy, high oil temperature, lowering of piston pump pressure at the beginning of the work which would effect the starting point and the longevity of the high pressure components will be affected by the changes of pressure
採用變量泵是水刀的技術突破，以前用國內柱塞泵，噪音大、不節能、油溫高，柱塞泵在開始工作時壓力會降低，這樣會影響切入點效果，高壓部件會受到壓力的變化而影響高壓部件的使用壽命。 -
Noise directivity of impinging jet from a small diameter axis ymmetric convergent nozzle on a large flat plate
低速沖擊載荷下加筋板彈塑動力響應分析 -
However, by comparison with flap nozzle servo valve which has been used widely and popularly by now, the torque motor of jet pipe servo valve has a larger rotary inertia. this causes low natural frequency of servo valve, and thus the response speed of jet pipe servo valve is slow. moreover, the jet pipe of servo valve has large flexibility, and it is easy to excite oscillations and noise in the valve, which is named self - excited oscillations and noise
然而與目前普遍使用的噴嘴擋板伺服閥相比，射流管伺服閥的銜鐵組件轉動慣量大，導致力矩馬達部分固有頻率低，從而響應速度慢，此外，射流管供油管柔性大，容易產生自激現象，這些缺點都使得射流管伺服閥的動態特性差，從而影響了它的工作性能。 -
An elemetary approach to meassures for reducing noise of high pressure water jet equipment
降低高壓水射流設備噪音的措施初探 -
Measurement and assessment for individual noise exposure in different types of work in a certain factory using new jet weaving machines
某新噴氣織機布場不同工種個體噪聲暴露的測量與評價 -
In the present work, the causing of high noise of multi - effect falling film evaporator was introduced in detail. based on the result of modern test technology, the relationship of noise and work presser was received. ground on the method of superposition, the noise of raw material pump was separated from the mixed noise and gets the true noise of steam - jet - ejector
本文對三效降膜蒸發器設備工作時，噪聲產生的機理進行了理論分析與研究，利用現代聲學測試技術手段進行測試與分析，得出三效降膜蒸發器設備的整體噪聲隨熱壓泵工作壓力增大而增大的關系，利用噪聲疊加原理，將三效降膜蒸發器設備的物料泵噪聲作為背景噪聲，計算得出三效降膜蒸發器設備的熱壓泵真實噪聲，因而得出熱壓泵噪聲亦隨其工作壓力增大而增大的關系。 -
With effect from 1 july 2002, all chapter 2 subsonic jet aircraft as defined in part ii, volume i, annex 16 of the convention on international civil aviation, which only meet less stringent noise standards, are banned from landing and taking - off at the hong kong international airport
從2002年7月1日起，全面禁止噪音較強，屬于國際民航公約附件16卷1第2部第2章所界定的亞音速噴射飛機在香港國際機場升降。 -
The jet noise theory is used to analyze noise produced during the opening period of the suction or discharge valves in a similar way, theoretical calculations are made
根據噪聲產生原理，指出降低噪聲的根本途徑是降低氣流通過氣閥前後的壓力損失，並給出降低氣流噪聲的主要途徑是：提出減小閥片剛性、厚度以及擴大排氣孔孔徑等。 -
Houses near airports sometimes have their windows broken by the noise of jet planes passing overhead.
機場附近的房屋的窗戶有時被在上空飛過的噴氣式飛機的響聲震破。 -
Used the theory of air - dynamic and the jet - ejector principle the characteristic of jet - steam, proving the noise signal have the character of chaos by using the fractal theory. noise sound pressure on the normal condition was checked by theory formula and contrasted with the experimental data. the difference was analyzed in detail
結合空氣動力學噴射氣流噪聲理論公式，驗算了三效降膜蒸發器正常生產時熱壓泵中拉伐爾管噴口處的噪聲聲壓級，與實測值進行對比，並詳細分析了兩者產生較大差異的原因。
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