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- To predict the rail s noise radiation, the receptance analysis model of the track system is built in this thesis. 為了預測鋼軌輻射的滾動雜訊,本文建立了軌道系統模型計算鋼軌的導納,在模型中,鋼軌採用三維實體單元模擬,軌枕採用彈性梁單元模擬。
- Firstly, conducted the evaluation of the car"s noise performance and benchmarking, defined the object. 本文首先對車內雜訊進行了評價,與同檔次對標車車內振動和雜訊級對比,確定了降噪目標。
- The article states that the noise of main axial compressor set in giou giangrefinery is reduced by measn of noise inoulator cover and ting hole noise silencer,and asatisfactory enviroment is obtained. 本文論述了採用隔聲罩和微孔消聲器降噪的方法,降低了九江煉油廠主風機組的噪音,獲得了良好的環境。
- The measure result of the system noise show that the optical fiber hydrophone TDM system would not bring obvious noise under the current level of the detector"s noise. 系統雜訊的測試結果表明在當前探測器雜訊水平下,利用光開關實現的水聽器時分復用系統不會帶來明顯的雜訊。
- In SART(Simultaneous Algebraic Reconstruction Technique),there is no restrict to image space,so the image space』s noise will increase after the definite number of iteration. 摘要 聯合代數迭代方法(SART)對重建圖像空間是無約束的,其迭代到一定次數后,圖像空間的雜訊會不斷增加。
- Then we design the multiplier circuit which is an important part for the rubidium atomic frequency standards and its noise is the main source of the whole system』s noise. 而倍頻電路是原子頻標的一個重要部件,其雜訊是系統雜訊的主要來源之一,其性能對銣原子頻標的性能有很大影響。
- Ramb rs noise silencer 長波式靜噪電路
- Ramb's noise silencer 長波式靜噪電路
- Experiment shows that the method can protect the high frequency information like edges from reducing the image』s noise effectively so that the de-noising effect is more protruded. 實驗表明,該方法在有效地濾除了圖像的雜訊的同時,還很好地保護了圖像的邊緣等高頻信息,使得降噪效果更加突出。
- Keywords ventilators;noise;traveling;noise silencer; 通風機;雜訊;傳播;消聲;
- They spend the winter(s) in a warmer climate. 他們在氣候較暖的地方過冬。
- Most plural nouns in English end in "s". 英語的複數名詞多以「s」結尾。
- The sweater had shrunk after repeated washing(s). 這件套頭毛衣洗過多次已縮水了。
- Work Mechanism and Installation of Aperture Noise Silencer for Exhaust Gas in Boiler 鍋爐排汽小孔消音器的機理及安裝
- Some old folk(s) have peculiar tastes. 有些老人有特殊的愛好。
- Noise Silencer for Steam Evacuation and Flow Adaptation of Its Valve in Thermal Power Plant 火電廠蒸汽放空消聲器及其閥門流量適配
- Answer the following question(s). 回答下列問題。
- Most plural nouns in English end in s'. 英語的複數名詞多以s結尾。
- The drug affects one's power(s) of concentration. 這種葯影響人精神不能集中。
- Keywords axial fans;noise;noise silencers; 軸流通風機;雜訊;消聲器;