tunnel speed 中文意思是什麼

tunnel speed 解釋
風洞氣流速度
  • tunnel : n 隧道；地道；坑道；管道，煙道，風洞；【礦物】石巷，平峒。 tunnel warfare 地道戰。vt （〈英國〉 l...
  • speed : n 1 快，迅速。2 速率，速度。3 （汽車的）變速器，排擋。4 （膠片，照相紙）感光速度。5 〈古語〉興隆...
  1. Nf - 6 wind tunnel is a pressurizing, continuous, high - speed and return - flow aerofoil wind tunnel

    Nf - 6風洞是一座由軸流式壓縮機驅動的增壓、連續、高速迴流式翼型風洞。
  2. Pressurizing, continuous and transonic wind tunnel is the first one in our country, and it is the world ' s first class tremendous high - speed aerofoil wind

    增壓連續式跨音速風洞在我國尚屬首例，是具有國際先進水平的大型高速翼型風洞。
  3. The controlling parameters for smooth blasting in qin - ling zhongnanshan tunnel project are optimized according to the fundamental principle of smooth blasting, considering the minimal resistance, coefficient of embrasure density, coefficient of non - coupling, density of dynamite and rate of exploding. the efficiency of this method has been analyzed and justified by the high speed and good quality of the project

    根據光面爆破的基本原理，從最小抵抗線、爆眼密集系數、不耦合系數、線裝藥密度、爆破進尺等幾個方面確定秦嶺終南山隧道光面爆破主要參數的選取，分析了該隧道鉆爆設計在隧道施工中的運用取得的成效，提高了施工進度，同時也保證了施工質量。
  4. The dynamic characteristics of evaporation process for naphtha and crude oil were researched in three aspects of different wind speed, evaporation area and relative location of evaporation surface to ground in wind tunnel

    摘要從環境風速、蒸發面積和蒸發液池與地面相對位置3方面分別對石腦油和原油的蒸發動力學特性進行了風洞實驗研究。
  5. Using the system designed in this thesis work, flow field calibration of the wind tunnel is accomplished, which covers dynamic pressure drop coefficient, dynamic pressure time stability, axial static pressure gradient, boundary layer, and degree of turbulence, etc. boundary layer measuring principle and method are especially described in detail, the relationship between boundary layer thickness, wind speed setting, and the depth of the experimental section is summarized, and finally the calibration data for th e model center zone under specific wind speed are given

    然後利用本文設計的系統完成了落差系數、動壓時間穩定姓、軸向靜壓梯度、邊界層及湍流度等內容的流場校測。特別對邊界層測量的原理及方法做了較詳盡的敘述，總結出邊界層厚度與設定風速、實驗段深度的關系，然後給出模型中心區一定風速下校正數值。
  6. Abstract : based on thestatic wind force factors of a tower and on the root - mean - square of the buffetingdisplacement responses of the tower top, which are measured by wind tunnel tests inlaminar and turbulent field respectively, the static and buffeting internal forces of thetower bottom control sections under its design wind speed are obtained by linearsuperposition method and fem

    文摘:基於均勻流和紊流風場中的橋塔模型風洞試驗所測得的橋塔空氣力靜力系數及塔頂抖振響應的位移均方根，採用線性疊加法及有限元法反演，給出設計風速下塔底控制截面的順風向靜風及抖振內力。
  7. Force measurement in a low speed wind tunnel was conducted to investigate the effects of the height of a distant canard wing on the longitudinal aerodynamic characteristics of a forward - swept configuration

    摘要基於前掠翼鴨式前翼布局的風洞測力實驗，分析了距離主機翼較遠的鴨翼相對于主機翼的高度對布局縱向氣動性能的影響。
  8. This paper deals with seismic analysis of an immersed tunnel using the travelling wave method the objective of the analysis is to obtain the maximum stresses in the tunnel body and the relative displacements at the joints for design purpose in analysis ， the axial and transverse input waves are treated as two independent waves with different amplitudes and periods the method has been found to have the advantages of simplicity and clearness in physical concepts however ， reasonableness of the prediction by the method depends largely on the input data ， such as the wave amplitude ， the wave length ， the propergation speed of the travelling wave as well as the reaction coefficient of the ground thus ， determination of the input data is discussed in detail finally ， the method is applied to analysis of huangsha - fangcun immersed tunnel across the pearl river in guangzhou

    將行波法應用到剛度較大、分段較多的水下沉管隧道的地震分析中，提出把軸向、橫向兩個輸入波處理為兩個獨立的行波的方法行波法是否符合實際，與輸入地震波的有關參數及地基系數選取有很大關系，作者對此進行了比較深入的討論，使輸入參數的選取簡單、明確，便於對計算結果進行分析與判斷最後應用此法對珠江水下隧道的工程實例進行了計算
  9. Abstract : this paper uses the supersonics wave inspecting method for judging the damage degree of fire hazard tunnel lining, and puts forward the correlation of concrete supersonics wave speed with relative physics and mechanical properties through test, and gives evaluation and suggestion about conventional supersonics wave inspecting method used in fire hazard tunnel

    文摘:將超聲波檢測法應用於隧道火災后的初砌損傷評定，通過試驗研究給出了砼超聲波速與砼有關物理力學性能的關系，並對超聲波檢測常規方法在隧道襯砌火損后的應用給出了評價。
  10. In this paper, using high - speed train aerodynamics model research system, the propagation mechanism of compression wave, which created when high - speed train entering into a tunnel was researched, at the same time the effect of velocity of the model train and the ratio of train with tunnel was analyzed, the result is helpful for future research

    利用高速列車空氣動力學模型實驗系統對高速列車在進入隧道過程中瞬變壓力的傳播規律進行研究，並分析了列車速度以及阻塞比對測試結果的影響，得出的結論對以後的研究具有一定的參考和借鑒。
  11. An experimental unit for measuring the instantaneous speed of a high - speed train passing through tunnel

    高速列車進出隧道瞬時速度測量實驗裝置
  12. One dimensional non - isentropic flow induced by high - speed train entering a tunnel

    高速列車進入隧道時的一維非等熵流
  13. With the construction of the west of our country developing at top speed and the need of construction of mountainous expressway, the tunnel engineering, especially the tunnels on the mountainous expressway, will be increased. if the design of support structures of the tunnel still adopts traditional design methods, it will be difficult to give full considerations for the reasonability in economy of the sections of the support structures and for the reliability of bearing capacity and stability of the support structures

    隨著我國西部建設的高速發展和山區高速公路建設的需要，隧道工程特別是山區高速公路隧道工程將會日益增多，隧道支護結構的設計若仍採用傳統的隧道支護結構設計方法將難以充分兼顧支護結構斷面經濟上的合理性和支護結構承載力與穩定性的可靠性，往往安全系數偏大，不能達到「最優設計」的目的。
  14. A comparison of the flows with different gate - opening rates shows the causes that opening the gate at a higher rate is favorable to the reduction of cavitation, gate vibration as well as the gate load fluctuation. in addition, a study has been made to show the influence of the high - speed jet flow coming downward from the narrow gate gap on the flow condition in the tunnel downstream to the gate

    通過分析比較不同閥門開啟速率對流動特性的影響，闡明了快速開啟閥門不僅有利於減少空化空蝕也有利於減小弧門振動和啟門力的脈動，此外，研究了門楣處狹窄縫隙高速射流對門后流態、壓力脈動和弧門受力等方面的影響。
  15. Yingyue ( shanghai ) electric wire and cable equipment co., ltd. is located in chenjia town of chongming island ? the prime national development zone and ecological park, where is surrounded by the seas and adjacent to the bridge and high - speed tunnel of shanghai - chongming - suzhou with convenient traffic

    上海瀛?電線電纜設備有限公司位於上海市全國重點開發區和生態園區- - -崇明島陳家鎮，四周環海，毗鄰滬崇蘇橋、遂高速通道，交通便捷。
  16. Eurostar trains have four different power systems for france, belgium, the channel tunnel and the london commuter lines they had to use while waiting for the high - speed link to open

    在等候高速連接開通的同時，歐洲之星列車針對法國，比利時，海峽隧道以及倫敦等必須使用的車道，擁有四套不同的電力系統。
  17. Much of the expense is shouldered by taxpayers, who pay for the dedicated high - speed tracks, but the train services that run on them mostly make a profit ( though eurostar has been dogged by losses relating to the channel tunnel )

    很多費用是由納稅人抗著的，他們為那些精緻的高速軌道掏腰包，但是在其上跑的列車運行服務卻大多數要賺取利潤（盡管歐洲之星一直被海峽隧道關聯的損失所困） 。
  18. Low speed wind tunnel experiment requires strict of the wind speed, which requires a wild range of wind speed, high precision, and quick adjustment

    低速風洞實驗要求對實驗段的風速有嚴格的控制，要求風速調節范圍寬，精度指標高，調節速度快。
  19. In order to ensure the quality of filling and the construction stability of the high - speed railway subgrade. " prescription of design of line, bridge, tunnel and station of high - speed railway " regulated that the filling used in the bottom of high - speed railway subgrade must be the type of a, b or improved soil

    即將修建的京滬高速鐵路對路基的填築質量要求很高，為了嚴格控制高速鐵路路基的變形，使未來的高速鐵路具有一個穩固的軌下基礎，適應列車高速運行的要求， 《京滬高速鐵路線橋隧站設計暫行規定》對高速鐵路的基床底層填料性能提出了具體要求，必須使用a 、 b組填料或改良土。
  20. Tunnel speed gauge

    風筒風速計
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