間隙定理 的英文怎麼說

中文拼音 [jiāndìng]
間隙定理 英文
gatheorem
  • : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
  • : 名詞1 (縫隙; 裂縫) crack; chink; crevice 2 (空閑) gap; interval 3 (漏洞; 機會) loophole; op...
  • : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
  • : Ⅰ名詞1 (物質組織的條紋) texture; grain (in wood skin etc ) 2 (道理;事理) reason; logic; tru...
  • 間隙 : (空隙) interval; gap; freedom; space; [機械工程] clearance; separation; stricture; clear; inter...
  1. And the deficiencies are pointed out in present researches, such as highway capacity, level - of - service, influence factor of road alignments, etc. from these, it has confirmed that the thesis should be studied from rational analysis, quantitative analysis of level - of - service, impact on capacity of road alignments, setting - up simulation model, etc. the high - accuracy gps dynamic data acquisition appearance is proposed to be used for the first time to carry on the experiment of overtaking on two - lane highways, and experiment scheme is designed according to the driver ' s perceive to judge each overtaking course. based on the experiment data, it can get two important parameters of acceptant gap ? the critical gap of overtakable time headway and returnable time headway through data processing, which can offer the strong support to the research of two - lane highway capacity with qualitative and quantitative analysis. besides, the experiment methods is provided to observe overtaking ratio and to measure the

    研究中首次提出了運用高精度gps動態數據採集儀對雙車道公路上的超車行為進行觀測,設計了根據駕駛員感受度來衡量超車過程的實驗方案,並通過後期數據處得到了超車過程中兩個重要的可接受參數-可超車車頭時距和可回車車頭時距的臨界值,為性和量分析雙車道公路通行能力提供有力的數據支持;同時,還提出了觀測超車率的實驗方法以及測量加速度干擾的實驗方案,統一了計算加速度干擾的時統計隔,為雙車道公路的服務水平量化研究奠基礎;最後還簡單介紹了駕駛員問卷調查法和模擬程序中模型參數標和驗證的數據採集方法。
  2. As an advanced materials preparation technology, spray - deposition has shown remarkable superiority in producing large - sized alloys and metal matrix composites. however, the spray deposeted preforms usually contain a certain quantity of porosity. besides, the oxide films on the surface of the particles lead to week metallurgic conjunction between the particles. in order to obtain an ideal structure and performance, the porous preforms need further densifying and plastical forming. in this paper, a new technology named wedge pressing was used to densify spray - deposeted 5a06 aluminium alloy, in which the large deformation can be obtained through the sum - up of local deformation and multi - step small deformation. this method can also solved the problems in traditional processing and greatly decreased the producing cost. what ’ s more, the reserch on the wedge pressing desification rules about the large - sized spray deposeted preforms was significant it was vital not only to the further densification of the prefoums but also to the further research on plastical deforming the research was also benefit to the industrialization an the application of the spray deposeted porous materials

    坩堝移動式噴射沉積技術作為一種先進的材料制備新技術,在制備大尺寸合金及金屬基復合材料方面具有顯著的優越性。然而噴射沉積坯件特別是大型坯件通常存在一量的孔,顆粒表面存在一量的氧化膜,顆粒之未能完全達到良好的冶金結合狀態,因此需要進行后續緻密化和塑性變形才能獲得想的組織和性能。本文採用一種新型的楔形壓制工藝,即通過局部變形、多道次小變形累積實現大變形的緻密化加工方法,對噴射沉積多孔坯料進行后續緻密化和塑性變形,很好地解決了傳統加工工藝的難題,大大降低了生產成本。
  3. Previous researchers have always determined the sp atial distribution patterns ( sdp ) of castanopsis kawakamii with a sample - dis tance method. however, the distribution patterns may be affected by the quadrat si ze and, in the course of analysis, the density differences among the cluster plots are not considered ; therefore, differences of cluster plot size and the dispersi on degree among individuals of cluster plots can not be known. authers of this pa per have determined the spatial distribution patterns of castanopsis kawakamii population in different habitats by means of non - quadrat distance method and a nalysed the pattern intensity and grain of the sdp. the pattern intensity is defi ned with the relative density differences and the pattern grain can embody the d ispersion degree of the individuals in the plots, and the dispersion degree among the plots. the determined results are as follows. the intensities of the species range in order from strong to week : litsea mollifolia p. kawakamii i. purpure a r. cochinchinensis c. kawakamii c. carlessii d. oldphamii s. superba. the gra ins of the species queue in order from coarse to close : s. superba = litsea mollif olia r. cohinchinensis c. kawakamii = i. purpurea c. carlessii p. racemosam d. oldp hamii. these determined results tally basiclly with the results authers of this paper have got in determining the same plots by means of aggregate index access ing method. in view of this, it is held that the sdp of c. kawakamii is closely related to the habitats and biological features

    前人都是採用樣方方法對格氏栲種群數量的空格局進行測,而格局分佈有可能受樣方大小的影響,且分析過程中沒有涉及聚塊密度差的問題,因而無法掌握種群的聚塊大小差別及聚塊內個體的離散程度.本研究採用無樣方距離法,測不同生境的格氏栲種群空格局,分析格氏栲種群格局的強度和紋.強度以聚塊和的密度差來義,紋則是體現聚塊內個體的離散程度與諸聚塊的分離程度.測結果表明,格氏栲種群格局強度從高到低排列次序為:木姜子蚊母樹冬青茜草樹格氏栲米櫧虎皮楠木荷;格局紋從粗到細的順序是:木荷=木姜子茜草樹格氏栲=冬青米櫧蚊母樹虎皮楠.這一測結果與作者採用聚集度指標測相同樣地格氏栲種群空格局的結果基本相符.因此,格氏栲空格局類型及分佈與格氏栲生物學特性及生境的關系密切
  4. The experiment result shows that the control method designed in the dissertation can ensure the steady suspension of the join - structure. when there is something wrong with one suspension point on a join - structure, the variation of suspension clearance of the other is only about 0. 8mm. it manifests that this method can achieve the join - structure ’ s redundancy function

    本文最後在原型搭接裝置上進行了懸浮控制實驗,實驗結果表明:文中所設計的控制方法能夠實現原型搭接裝置的穩懸浮,而且搭接裝置上的一個點出現故障時,另一個點的懸浮最大增加量僅為0 . 8mm左右,由此說明該方法能夠確保搭接結構冗餘功能的實現。
  5. The second part consist of chapter four. in chapter one, we study the energy density of harmonic map from finsler manifold and generalize classical result in [ se ]. in chapter two, we obtain lower estimates for the first eigenvalue of the laplace operator on a compact finsler manifold, and it generalize lichnerowicz - obata theorem [ li ] [ ob ]. in chapter three, we derive the first and second variation formula for harmonic maps between finsler manifolds. as an application, some nonexistence theorems of nonconstant stable harmonic maps from a finsler manifold to a riemannian manifold are given

    第一章討論finsler流形到黎曼流形調和映射的能量密度的性,推廣了[ se ]中的結果。第二章對緊致finsler流形上laplace運算元的第一特徵值的下界作了估計,推廣了黎曼流形上的lichnerowicz - obata[ li ] [ ob ] 。
  6. According to non - newtonian fluid mechanics theory and mathematical method, conbined with plunger moving property, the hypothesize fluid is imcompressive, hydraulic radius of flow of liquid in crevice is very little, and it is laminar flow, the flow is treated fixed continuous flow at every instant position of plunger, equation of motion and boundary condition were set up in condition of concentric and eccentric of pump barrel and plunger

    運用非牛頓流體力學論和數方法,結合抽油泵柱塞運動特點,假設液體為不可壓縮的,液體在縫中流動的水力半徑很小,呈層流流動,柱塞在每一位置的瞬,流動做常流處,建立了泵筒與柱塞同心和偏心兩種情況下運動方程和邊界條件,引入無量綱坐標、無量綱速度和柱塞與泵筒偏心配合時的縫高度,並給出縫流流速、流量的解析解。
  7. The equipment adopts centrifugal sliding plow groove rotor and is the newest structure evaporator at present. it can form membrane under the condition of small flow. comparing with that of fixed space drag evaporator, its evaporation capacity can increase 40

    本設備採用離心式滑動溝槽轉子,是目前國外最新結構蒸發器,在流量很小的情況下也能形成薄膜,在簡體蒸發段內壁表面附著處液中的淤積物可被活動刮板迅速移去,和固的刮板蒸發器相比,蒸發量可提高40 69 。
  8. By improving surface condition of parts and one shot seal - off clean room grade, using ultrasonic vapor phase cleaning process, the inner parts of vacuum interrupter get cleaner. movable particles have been diminished by automatic current ageing, power frequency hi - voltage ageing and dynamic high current ageing. as the dielectric strength of clearance in vacuum interrupter improved, the probability of re - ignition in test drops evidently

    通過提高零件表面加工質量,改善一次封排的真空衛生條件、制的超聲波氣相清洗工藝提高管內潔凈度,採用自動電流老煉、超高壓工頻老煉、大電流動態老煉等工藝進一步消除真空滅弧室內活動性微粒,可提高真空滅弧室真空介質強度,使真空開關投切電容器組的重燃率大大降低,並通過實驗驗證真空開關投切電容器組的重燃率在製造工藝改進後由原來的10 . 7 %降低至1 . 3 % 。
  9. According to the analysis of physical quantities in the body, we got a conclusion that the effect of pn junction on schottky is through its depletion layer and the gap between two pn junctions

    通過對器件體內各物量的量分析,得出pn結對肖特基的作用是通過其耗盡層和兩pn結之來影響肖特基的導電溝道這一結論。
  10. 4. combined with the design of the three gorges prestressed concrete penstock with steel liner in the three gorges power. station, the consistence among the results of theory calculating, the analysis of plane finite element and three dimensional finite element is proved, the concrete stress distributions of the prestressed concrete penstock are analyzed with different steel liner thicknesses, different crack resistances, different concrete thicknesses and different initial radial gaps between steel liner and concrete. the feasibility of the design method of prestressed concrete penstock with steel liner is proved

    結合三峽電站鋼襯預應力混凝土聯合受力壓力管道的設計方案選擇及論證分析,對比分析了鋼襯預應力混凝土壓力管道論計算、平面有限元和管壩整體三維有限元分析結果的一致性,確了管道結構在不同鋼襯厚度、不同抗裂度要求、不同外包混凝土厚度及不同鋼襯與管壁混凝土初始徑向等因素影響下的內力分佈規律,驗證了鋼襯預應力混凝土壓力管道的設計方法。
  11. By means of the results obtained, such as the quantificational relationships between the rock ultrasonic wave parameters and the important formation conditions like pressures, and the half - quantificational relationships between the rock ultrasonic wave parameters and porosity and density of those rocks, and the relationships between rock ultrasonic wave parameters and the composition of rocks, we established the corresponding relationships between the ultrasonic wave parameters and depth under the main formation conditions ( indicating temperature and pressure gradient ) in tertiary of zhujiangkou basin, which should be very useful for the geophysical exploration

    獲得了巖石聲學參數與壓力等重要地層條件之量關系,巖石聲學參數與孔度和密度之、以及與巖石組成之的半量關系,並建立了在珠江口盆地東部第三系主要地層條件下(指溫度梯度和壓力梯度)不同巖石類型的主要聲學參數與深度之的對應關系,該關系可為地球物正演模型的建立提供基本參數、並為地震反演提供新的約束機制。
  12. This thesis, on the basis of modern theories of vibration, ked analysis and finite element method, sets up a kinetic model of piston - linkage mechanism of diesel engine, by i - deas software of sdrc usa, which involves the effect of joint clearance in mechanism. by the presumption of " transient structure " in ked analysis, the mechanism " s dynamic responses in every transient structure conditions are calculated, and it provides a reliable theory basis for the optimization design of diesel engine

    本課題基於現代機械彈性動力學論以及有限元分析方法,利用美國sdrc公司的- deas軟體,對含運動副的柴油機的活塞、連桿機構建立了動力學模型;運用ked分析中的「瞬時結構」假,計算出了機構在各瞬時結構條件下的動態響應,從而為柴油機優化設計提供了可靠的論依據。
  13. In these two experiments, it includes test scheme. outer precision estimation, inner precision estimation. the data collecting is in accordance with ii order leveling measuring and ii order distance network. these two experiments test the reasonable of datum consistency and the method of mean gap building deformation model

    該實驗驗證了對于基準問題的分析和平均法對位移量的探測情況;在水平位移變形監測網的實驗中,數據採集按二等測邊網測量精度進行,證實了用平均法判斷穩點,進而確變形模型的合性。
  14. At last, this paper derives the rules of damping torque due to magnetic fluid in the working clearances of torque motor and lays the groundwork for the study of torque motor dynamic characteristics and servo valve characteristics

    最後,結合模擬分析和實驗數據,得出了磁流體在力矩馬達工作中的作用規律,從而對力矩馬達的動態特性及伺服閥整體特性研究奠論基礎。
  15. The threshold speed and the typical characteristics of the oil whip of the system are simulated under the nonlinear model of oil film force, and the state of motion and type of the bifurcation are analyzed by floquet multiplicators which is computed by the shooting method. secondly, the the nonlinear dynamical model of the low - pressure rotor - bearing system by column bearing with reduced dimensions is presented. the numerical results show the rule of the amplitude with the eccentricity of rotor, the length - to - diameter ratio, oil viscosity and the clearance - to - radius ratio of the bearing under the definite speed

    其次,對降維后的低壓轉子?軸承系統的非線性動力學方程,計算了圓柱瓦軸承支撐的轉子系統的振動穩性在固轉速下隨偏心距、軸承長徑比、潤滑油動力粘度和軸承比的變化規律,並分析了轉子前軸承軸頸的失穩轉速與轉子偏心距、軸承長徑比、潤滑油動力粘度和軸承比之的關系,同時利用floquet論分析其運動狀態和分岔類型。
  16. Meanwhile, in the experimental work, the scope of the equation that reveals the relation between the magnet force and the working distance is defined definitely. different materials of the magnet core are compared in terms of their influence to the valve. however, it is only initiatory, more work needs to be done in the future

    同時,還採用試驗研究的手段深入分析了電磁閥工作與電磁吸力之的關系,明確了吸力公式的應用范圍,同時,在不同材料的對比試驗中,分析了磁性能較好的鐵氧體和鐵鉻合金以及工業純鐵對電磁閥工作性能的影響,對合電磁閥鐵芯的製作材料進行了初步的探討。
  17. Research finding about the tip clearance of engine in the paper is basal ; they can be used as reference of aero - engine design and the tip clearance control

    這些工作對于發動機初步設計設計和葉尖控制論研究有一的參考價值。
  18. The tower shafts, most of which are hollow and varying in cross section, and altitudinal construction bring trouble to the form work and the stress of strand wire. and the cracks on the crossbeams will be caused by the following - deformation of the bracing structure joints, elastic deformation , uneven settlement and temperature changes. the additional stress of the base slab and the foundation is caused by the deviation of cable bent tower construction

    但大跨度橋梁混凝土索塔施工設備進場及現場管都比較困難;塔柱多為空心變截面,且為高空作業,給模板工程及預應力張拉帶來一困難;支撐系統連接的變形、彈性變形、不均勻沉降以及環境溫差可導致橫梁裂縫;索塔施工偏位會引起的承臺和基礎的附加應力,對加勁梁的架設影響大;懸吊結構未完體系(架設時)施工階段的風致振動往往影響到施工的安全和質量;實心塔柱部分體積較大,易產生溫度裂縫。
  19. Two conclusions about suspending control system are given in this paper : 1. the single suspending system controlled by parameter self - turning control algorithm has better performance when the mass of single point suspending system, the resistance of electromagnet and the suspending gap are variable ; 2. the single suspending system controlled by global asymptotic stability control algorithm is global asymptotic stability and can restrain the stochastic noise

    通過對採用上述控制演算法的懸浮系統的論分析和模擬研究,主要得到了以下幾方面結論: 1 .當系統懸浮質量、電磁鐵電阻和額參數變化時,設計的參數自校正控制演算法可使系統的動態性能指標保持在設的指標; 2 .設計的全局穩控制演算法,能夠保證二級結構單點懸浮系統的全局漸近穩,且對隨機噪聲干擾有一的抑制作用。
  20. Check the clearance among the spare of cutter termly. if the clearance is too large, adjust the washer to the reasonable clearance

    期檢查切割器刀片,如過大應調整壓刃器墊片來達到
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