通道面積比 的英文怎麼說

中文拼音 [tōngdàomiànjībǐ]
通道面積比 英文
area ratio of combustion chamber passage
  • 通 : 通量詞（用於動作）
  • 道 : Ⅰ名詞（道路） road; way; route; path 2 （水流通過的途徑） channel; course 3 （方向; 方法; 道理） ...
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  • 積 : Ⅰ動詞（積累） amass; store up; accumulate Ⅱ形容詞（長時間積累下來的） long standing; long pending...
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 通道 : thoroughfare; passageway; pass; enterclose; gallery; drong; tunnel; avenue; alure; way; row; key ...
  • 面積 : [數學] area
  1. What is more, these cables run from the switching room to the transmission room, occupying a great deal of channel space between stories, which is even more precious than machine room space. to solve this problem, 2. 5g transmission equipment has to be used as bridge cable between stories

    同時電纜要從交換機房布放到傳輸機房，需佔用大量樓層間的通道，通道的資源對我們來說比機房的面積還要寶貴，已經有很多機房樓出現這樣的問題，由於通道資源不足，只好用昂貴的2
  2. Area ratio of combustion chamber passage

    通道面積比
  3. Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed

    本文在總結和分析了一個世紀以來有關曲線管道流動和換熱特性的研究成果的基礎上，以旋轉正交曲線坐標系統下的多參數旋轉螺旋管道中的對流傳熱為物理模型，通過攝動方法和有限體積法，首次對各種截面（圓截面、橢圓截面、環形截面、矩形截面）旋轉曲線管道內充分發展流動的流動結構和傳熱特性（包括耦合對流傳熱特性）以及旋轉曲線管道開口段發展流動的流動結構和換熱特性進行了系統的數值模擬和理論分析，詳細討論了各種無量綱參數對管道內軸向速度分佈、二次流結構、溫度分佈、壁面摩擦力、摩擦系數比以及管道nusselt數的影響，獲得了若干創新性成果。
  4. To the inferior trap of rock - bottom building, ought to want special attention the following problem : ( 1 ) notice indoor moistureproof design, the ground outside basically observing indoor ground is compared wants tall how many, moistureproof measure how, judge thereby, the building fights damp ability, whether to live aptly ; ( 2 ) notice indoor facilities is designed, conduit of indoor fluctuation catchment is reasonable, observe whether conduit distribution is equitable, expedite, jam not easily ; ( 3 ) notice the establishment outdoor is designed, whether is the system such as room of the raceway groove outside be like, cesspool, water pump, catchment designed reasonable, accessary establishment leaves living room whether too close, this basically is to prevent to be all round the building generation seeper, especially after big rainstorm, be like catchment not free, the excessive outside possible sewage, by water adj / lit wide

    對于底層房屋的劣質陷阱，應當要非凡注重以下問題： （ 1 ）注重室內地面防潮設計，主要觀察室內地面比外地面要高多少，防潮措施如何，從而判定，房屋抗潮濕的能力，是否適宜居住； （ 2 ）注重室內設施設計，室內上下排水管道是否合理，觀察管道布局是否合理，是否暢通，不易堵塞； （ 3 ）注重室外設施設計，如外溝道、化糞池、水泵房、排水等系統是否設計合理，附屬設施離居住房是否太近，這主要是為了防止在房屋四周產生積水，非凡是大暴雨後，如排水不暢，有可能臟水外溢，被水淹。
  5. A 2 - d hydrodynamic - numerical model was applied to typical rocky rapids called jiyutan by comparing different computational models. based on the comparison of different schemes, the change of the discharge and the flow current in a branch were analyzed, and the relationship between the flow condition and excavation area, scope as well as mode was discussed, the conclusions show : ( 1 ) in a branching rocky rapids, the velocity may be reduced and flow condition can be improved by excavating one channel partly

    本文在對各種數學模型比較的基礎上，應用二維水動力數學模型研究典型石質汊流灘? ?廣西潯江鯽魚灘航道整治工程方案，通過各方案計算結果比較，分析了不同汊道的開挖及汊道內不同開挖面積、開挖范圍以及開挖方式所引起的分流比及工程區域航道水力條件的變化規律，研究結果表明： （ 1 ）對于石質汊流灘來說，在某一汊道通過局部開挖河槽，擴大過水斷面面積，可以達到降低工程段流速、改善局部水流條件的目的。
  6. The first part. task analyse of handling technology design. is explain the place, basic establishments entironment of yangshan port and the conditions basic tenet and technical parameter of design. the second part, project study out. is discuss the design contents the choice of the leading and the assistant engine, the form of the handling mechanisation system, project study out. the third part, size design, is count the berth pass capacity, the amount of handling engine, the area and capacity of yard, road and gate, the worker amount. the fourth part. technology and economy argumentation, commendable project confirm, is confirm the commendable project by technology and economy argumentation. in the end, considering the technology, economy and use. discourse commend the project of rubber - tyred gantry crane. at present. centre government is studying yangshan project, but in handling technology part of container terminal, the design is simply. so this discourse has important consult value. and has important value of economy and community too

    第一部分的裝卸工藝設計任務分析主要就洋山港區的地理位置、基礎設施、自然環境，設計前提條件，設計原則以及設計主要技術參數進行說明；第二部分的裝卸工藝方案擬定主要就工藝設計的主要內容，主要機械及輔助機械選擇，裝卸機械化系統組成以及工藝設計方案擬定進行論述；第三部分的裝卸工藝方案規模設計主要就泊位通過能力，裝卸機械臺數，堆場面積及堆存能力，道路及大門，司機及工人人數，工藝流程進行計算分析；第四部分的技術經濟論證及推薦方案確定主要就技術、經濟指標進行對比論證，並在此基礎上確定推薦方案。
  7. Based on the analysis of satellite images of various periods, landform data and river channel transverse section evolution in the lower yellow river, the characteristics of the river channel boundary condition changes at different location are clarified as middle flood channel flood transport width and area are evidently decreased especially for the main channel with comparison to 1950s, beach area that is unimpeded before become blocked because of road, irrigation channel constructed on it, and consequently intensify high edge of beach and lowering dyke and river

    在現場查勘的基礎上，通過對丹江口水庫和小浪底水庫攔沙初期下遊河道演變、排洪能力變化特點的對比，分析了黃河下游防洪面臨的新形勢:小浪底水庫攔沙初期，下遊河道發生沖刷，但艾山以下窄河段沖淤變化不大，近年來形成的淤積萎縮的狀況難以很快改觀，游蕩性河段調整劇烈，工程出險機遇增大，河道水位流量關系中水流量以下部分同流量水位明顯降低，中水流量以上部分水位降低幅度可能會明顯偏小，防洪形勢仍不容樂觀。
  8. With the using of microsoft visual basic 6. 0, a multimedia computer - aided design system of small type pumping irrigation district is developed in this paper. provided with the live multimedia messages as well as a good man - machine conversation mechanism, this system can help the user to finish the planning of an pumping irrigated area such as the layout of canal system, the selection of pump models, the establishment of the irrigation program, the calculating of canals " parameters, the estimate of the project magnitude, the selection of the field constructions, the economic analysis of the project, the output of results, etc, a new oo ( object oriented ) programming method is adopted in this system, various softwares are integrated in this systems as well by the " automation " technic provided by vb, in addition, the multimedia technic is applied to this system for the first time, it makes the system easy to ope rate. as for the optimization of the canals " section, a new optimization method is adopted based on the existing theories about the canals " section, and in this way, with the purpose of minimizing the project ' s investment as well as a stalized canal, limited by the longituding slope, the canals " best feasible parameters can be deduced. furthermore, a integral method to reckon the earth work is developed in this paper, by this way, the estimate precision of the earthwork is enhanced notably. this paper includes the particular illumination for the developing procedure of each systems " segment, and in the end, the directions of the system are demonstrated in a sample area which lies in the zhaija village, taizhou city, jiangsu province, the running results showed that the initial purposes are achieved effectively, and it has a preferable practicability

    在渠道縱橫斷面優化方面，本文在利用已經比較成熟的縱橫斷面優化理論的基礎上，提出以工程總費用最小為目標函數，以渠道縱坡i為控制變量，以渠道不沖不淤流速及灌區允許地面比降為約束條件，通過縱橫斷面聯動優化的方法得到渠道的最佳工程可行的斷面參數。另外，針對部分地區的取土困難的狀況，本文採用積分法計算渠道工程土方量，從而大大提高了土方量的估算精度，有助於準確控制工程投資規模及資金投向。本文詳細闡述了該系統所採用的編程方法、系統構成、系統各組成模塊的開發過程以及灌區規劃所採用的優化方法及原理，最後應用本系統對泰州市翟家村機電灌區進行規劃設計，運行結果證明其操作比較簡便，界面友好，運行速度快，規劃成果合理，基本達到了系統預定的要求，具備較強的實用性。
  9. A parametric analysis of the inviscid effects of leading edge sweep, sidewall compression, width - height ratio, cowl position and inflow mach number on spillage is finished. numerical simulations are completed for a series of inlets at various flight height and velocity. the research indicates that the area of spillage window, which is mainly determined by the position of the cowl, significantly influences the spillage characteristic of the scramjet inlet

    闡明了側板后掠的側壓進氣道設計參數對構型溢流影響;對不同側板配置方式的側壓式進氣道進行了數值模擬，通過對比分析，發現由唇口板的位置所決定的溢流窗面積的大小對進氣道溢流特性的影響顯著。
  10. The main study content of this thesis is ( 1 ) analysis of present financing and its generated deep cause, growth system and the necessary financing strategy to be taken at the various growing stages of small and medium enterprises ; ( 2 ) analysis of relationship between capital structure and financing management and determination on the importance of financing management of small and medium enterprises ; ( 3 ) using the growing stage, financing management and strategy of zhejiang qw as reference case, specifically analyses the financing channels, comparison of financing methods, forecast of cash requirement, exploring the characteristics on how the financing of small and medium enterprises is being structured at different

    （ 3 ）通過以浙江qw所處的成長階段、融資管理和策略為案例，具體分析了中小企業的融資渠道、融資方式的比較分析和資金需求量的預測，探討了中小企業如何在不同發展階段中的融資結構特點和不同發展階段下小企業在選擇融資方式時表現出的不同傾向性，及如何在各種融資方式中進行選擇。 （ 4 ）針對加強中小企業融資管理和目前融資現狀不協調的矛盾情況下，探索中小企業融資方式的主要途徑? ?一方面是加強企業的融資意識，積極開拓融資渠道和融資方式，另一方面是外部融資環境的逐步建立和完善，為各中小企業選擇其適合的融資方式和渠道提供好的融資環境。
  11. The following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel. compared with conventional methods, the new approach offers lower computational complexity, better performance, and more robust against the over - determination of the system order ; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero - forced equalizer is proposed which is more simple in its structure of algorithm ; 3 time - varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model, kalman filter is then employed to track channel variations, it bears faster ability in tracking the variation of tv channels ; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system, a new algorithm of equalization of simo time - varying channel is proposed, which also share the merits of being robust against the over - determination of the system order ; model the time - varying channel using the multi - resolution decomposition wavelets, and then a blind identification method based " on the model is proposed ; at last, a new model for equalization and identification of mimo system is proposed

    主要工作在以下幾個方面： 1 、針對頻率選擇性衰落通道：結合輸入輸出空間同構關系提出一種新的頻率選擇性通道均衡方法，與傳統方法相比，該方法計算量更小，收斂速度更快，性能更優，且對系統階次的過確定表現穩健，具有實際均衡應用價值； 2 、針對時間選擇性衰落通道：提出一種基於迫零均衡的時間選擇性通道均衡方法，演算法結構簡單； 3 、針對時變色散通道：利用瞬態均值曲線提取通道時變信息，對之ar建模，利用卡爾曼濾波器跟蹤時變通道抽頭變化，可以快速跟蹤通道變化；基於輸入輸出空間之間的同構關系以及多輸入多輸出系統的處理方法，提出了新的單輸入多輸出色散時變通道均衡與識別演算法，同樣具有對通道階次過確定保持穩健的優點；結合小波多解析度分析提出一種基於小波模型的通道盲識別演算法；研究時變的多輸入多輸出系統的盲均衡與盲反卷積問題，給出一種時變系統處理模型。
  12. Abstract : the forced state in key parts and their lifetime, the volume of high pressure chamber and ratio of pressure, the length of high pressure stroke and pressure stability, the relations between the deformation of high pressure chamber and temperature field and pressure field for three kinds of apparatus of making synthetic diamond under high pressure and high temperature were compared in this paper. the differences of these main apparatus were analyzed according to the degree of difficulty and ease in the technique, the choice of applicability and the cost and yield of them. it was emphasized that studying and developing the large sized belt - type press should be the way to make high quality saw diamond and change the state of making middle and low quality diamond in the diamond industry of our country, catching up with the international advanced level as well

    文摘:通過對高溫高壓合成金剛石3種主要裝備在關鍵部件受力狀況與使用壽命、高壓腔體積與壓力利用率、高壓沖程大小與壓力穩定性，高壓腔變形與溫場、壓場的關系等方面的比較，分析了3種主要裝備在技術難易程度、適用性選擇和投入產出比的差異；強調了我國金剛石行業要改變當前只能生產中低檔金剛石的現狀，向生產高品級鋸片級金剛石的方向發展，與國際接軌，應該走大型化兩面頂的道路。
  13. The forced state in key parts and their lifetime, the volume of high pressure chamber and ratio of pressure, the length of high pressure stroke and pressure stability, the relations between the deformation of high pressure chamber and temperature field and pressure field for three kinds of apparatus of making synthetic diamond under high pressure and high temperature were compared in this paper. the differences of these main apparatus were analyzed according to the degree of difficulty and ease in the technique, the choice of applicability and the cost and yield of them. it was emphasized that studying and developing the large sized belt - type press should be the way to make high quality saw diamond and change the state of making middle and low quality diamond in the diamond industry of our country, catching up with the international advanced level as well

    通過對高溫高壓合成金剛石3種主要裝備在關鍵部件受力狀況與使用壽命、高壓腔體積與壓力利用率、高壓沖程大小與壓力穩定性，高壓腔變形與溫場、壓場的關系等方面的比較，分析了3種主要裝備在技術難易程度、適用性選擇和投入產出比的差異；強調了我國金剛石行業要改變當前只能生產中低檔金剛石的現狀，向生產高品級鋸片級金剛石的方向發展，與國際接軌，應該走大型化兩面頂的道路。
  14. The experimental model is a rectangular section of 15. 2 187mm ~ 2, which is composed of two aluminum plates. the angles between the internal netted rib turbulators and the flow direction are 45 ? for the one plate and 60 ? for the other, or both 45 ? for two plates. in the experiment, the re numbers changes from 0. 4 10 ~ 4 1. 5 10 ~ 5, rib width - to - pitch are 0. 25, 0. 3 and 0. 5, rib width - to - height are 0. 25, 0. 3 and 0. 5, the rib height - to - hydraulic diameter ratio is 0. 246

    主要研究了在通道進口截面積（即無肋處的截面積） a為15 . 2 187mm ~ 2 、肋高與通道當量直徑之比e / de等於0 . 246 ，實驗雷諾數范圍在0 . 4 10 ~ 4 1 . 5 10 ~ 5之間的情況下，雷諾數re 、肋向角a 、肋寬與肋高之比t / e和肋寬與肋間距之比t / p等參數對通道強化傳熱與流動阻力特性的影響。
  15. Finally, the two dimensional flow in the diffuser is calculated, the results show that the change of ma makes an effect to the performance of the diffuser. owing to the accretion of ma, the action of oblique shock waves and the boundary layer pricks up, the flow separates from the wall where the shock waves impinge on the boundary layer more quickly, the cluster of diamond shock waves becomes larger. moreover, by comparing the change of flow field under different structure parameter, it is found that the augment of length of constant area section alter the structure of fluid field little, a smaller area ratio and larger angle of compression section make the diffuser working better

    最後，針對擴壓器中的二維流場進行了數值模擬，結果表明馬赫數對擴壓器性能影響較大，隨著馬赫數的增大，擴壓器管道內激波-附面層干擾加劇，流動從附面層分離相應加劇，激波串數目增多;通過比較不同結構參數下的擴壓器內流場，發現等直段長度的變化幾乎沒有改變流場結構，只是對局部流場稍有影響，並且在其它參數不變的情況下，一定范圍內減小面積比a2 / a1和增大收縮角有利於擴壓器性能的提高。
  16. Penman considers that the question can be solved by 4 ways : the structural setting of bohai bay basin should be studied thoroughly to conclude possibility of the transgression ' s passageway. reliability of marine makers provided should be newly considered. new and exclusive evidences are required. similar sediment traps in correlative strata abroad are collected to research contrastively

    幾種觀點長期並存，筆者認為要解決這一問題，可以從四方面入手：深入研究渤海灣盆地的構造背景，推斷海侵通道存在的可能性；進一步釐定已有的海相標志的準確性；尋求新的、唯一的能區分海陸相成因的證據；搜集國外在相關層位元有類似沉積的地區，進行對比研究，並探索其成因。
  17. Comparing with the traditional parallel interface chips, they have fewer legs ~ smaller volume and use fewer resources. therefore, multiple channel data selecting controls keyboar &. display and alarm are realized through at89c52 ? four eight - bit i / o interface, without extending other i / o interface, making the system simplified and reliability increased

    單片機的i / o介面晶元全部採用最新的串列工作方式介面晶元，與傳統的并行介面晶元相比，它們引腳數少，體積小，佔用的口資源少，因此用at89c52的4個8位的i / o口就完成了多個通道的數據採集、控制、鍵盤、顯示和報警等功能，沒有擴展其它i / o介面，使系統接線簡化，可靠性提高。
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