velocity of development 中文意思是什麼

Analyzing the physics structure of vorticity, divergence, vertical velocity, frontogenesis " function, apparent heat source and apparent moist sink etc. indicated the physics fields are favorable for the occurance of the heavy rain over changjiang - huaihe river basin where the physics values are well according to the heavy rainstorm positions ; the low level jet is closely subject to the moisture and the coupled system of the low and the upper level jetstreams induced the strongly " ascending motion ; the intensity of the frontogenesis varies with the development of the rainfall system and reacts the rainfall intensity

主要分析了這次過程中的多種物理量，包括渦度、散度、垂直速度、鋒生函數、視熱源、視水汽匯等，對這一暴雨過程有了比較系統的認識。結果表明：在江淮流域存在著有利於發生暴雨的物理量場配置，渦度、散度、垂直速度等物理量，與暴雨的落區都很吻合的；低空急流的產生不僅有利於水汽的輸送，而且高低空急流的耦合造成了有利於強上升運動的配置；鋒生強度隨著降水系統的發展變化，並影響降水強度。

As the vital development of the millimeter wave guidance technology, phased array antennas use electrical control scanning beam, which results to faster scanning velocity, more flexible beam control and higher anti - interference ability. thus it can realize target seeking, tracing, guidance at the same time, and can work in the complex and worsening condition

作為毫米波制導技術的一個重要發展方向，相控陣制導技術中的相控陣天線是採用電控方式掃描波束，掃描速度快、波束控制靈活、抗干擾能力強等，可以同時完成目標搜索、跟蹤、引導等多項功能，能工作在日益復雜和惡化的工作環境中。

Analyses the smoke characteristics in the development of fire and obtains its changing curves. according to different fire loads, studies the changing relation between the critical velocity and fire intensity

摘要分析了地鐵火災煙氣特性隨火災發展過程的變化情況，得到了煙氣特性變化曲線。針對不同的火災荷載，研究了臨界風速隨火災強度的變化關系。

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。

With the development of automobile industry and road transportation ， the traffic accidents happen every day in the world and become a serious society problem the vehicle collision accidents are over 2 / 3 times as much as all traffic accidents they cause a large amount of social infuence and serious economic loss therefore ， it is urgent to study vehicle collision accidents comprehensively and systematically ， and the research also is the academic foundation to analyze and deal with traffic accident it is difficult to authenticate car velocity after traffic accident to dig over locate witness is right way mechanics is avaid tool in this field it is important to establish math model and this is precondition to calculate vehicle velocity firstly on the basis of summarizing the research results ， this paper deeply discusses the calculating model to analyze the instantaneous motion state in the vehicle collision, the interrelation among the every moving mechanics parameters in the every phase of the collision secondly ， according to the collinear collision and two - dimension collision and the restitution coefficient ， the paper estabishesthe post collision movement models it proves that these models are correct and valid thirdly ， this paper try to research reconstruction of road traffic accident and put forward the method on it

對交通事故的科學分析應是建立在正確的數學模型與計算機模擬技術基礎上的定量分析，其基本條件就是要有能正確描述事故過程中汽車狀態的數學模型，只有建立正確的數學模型，才能較準確地推定事故車輛的碰撞速度。所以建立正確地車輛碰撞模型和運動模型正是汽車事故再現的關鍵問題。本文首先在總結前人研究的基礎上，深入地研究汽車碰撞理論，分析了車對車碰撞作用瞬間狀態的計算模型及碰撞恢復系數與碰撞前、后速度的關系；其次，根據交通事故中最普遍的一維和二維碰撞的不同情況，採用恢復系數和滑動摩擦系數等概念，分別建立了碰撞后車輛動力學模型；第三，對汽車碰撞事故再現進行了初步研究，確定了車對車碰撞事故模擬計算和反推計算方法，並給出相應的模擬程序流程圖。

The contrast analysis for the vertical distribution feature of the simulated physical quantities such as vorticity, divergence, vertical velocity. spiral degree etc suggests that there are a good disposal among the various physical quantities fields in the different stage during the period of sandstorm development, and reveals that the dynamic mechanism of the forming, developing, decreasing of the sandstorm weather and trigger and indication effects of the micro - mesoscale systems and secondary vertical circulation to the occurring and developing of sandstorm in northwest area

對渦度、散度、垂直速度、螺旋度等物理量的水平和垂直分佈特徵進行對比分析，發現各物理量場在沙塵暴發展的不同時期有著很好的配置，揭示出西北地區沙塵暴天氣的形成、發展、消弱的物理機制和中小尺度系統、次級垂直環流對沙塵暴天氣發生發展的觸發和指示作用。沙塵暴區上空螺旋度垂直分佈為高層負值，低層正值，螺旋度大小的演變與沙塵暴的出現有一定的對應關系。

With compensation of signal ’ s time delay from different radiating element by phase shifters, phased - array antenna can control array beam easily. because there are no mechanical devices for rotating beam, the phased - array antenna system can scan everywhere in beam covered areas in millisecand by stepping the phase shifters. it improves the tracking velocity of antenna towards the object, and becomes the development trends of weapon system antennas

相控陣天線利用移相器補償信號到達輻射單元時間的差異，從而控制波束方向;天線沒有機械旋轉問題，只需改變移相器的設定值，波束便可以在毫秒級內掃描其覆蓋空域內的任何地方，提高了天線對目標的跟蹤速度，是目前武器系統天線的發展方向。

The horizontal swirling flow internal dissipater tunnel being built in gongboxia power station will be the first one reconstructed from a diversion tunnel whose discharge reaches to 1000m vs and water head is more than 100m in china. its scheme ' s argumentation, test research and future apply will have important meanings to the design. research and engineering application of internal dissipation discharge tunnel with swirling flow, will powerfully promote engineering application of this new kind of dissipation mode, which may solve some high velocity problems in high dam construction and provide a engineering example for technological and economical augmentation in a diversion tunnel reconstruction. it is of theoretical and practical importance to promote hydraulic structure researches and development

公伯峽水電站右岸旋流內消能泄洪洞是國內第一個泄量達1000m s 、水頭超過100m ，即將修建的旋流式內消能泄洪洞，其方案的論證與試驗研究以及建成后投入使用，將在國內外旋流式內消能泄洪洞設計、研究與工程應用中具有重要的意義，將有力的推動這一新的消能形式在工程中的應用，從而為解決高壩建設中泄水建築物的高速水流問題與導流洞改建的技術與經濟問題提供工程實例，對推動與發展水工水力學的研究與發展均具有重要的理論與實踐意義。

This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory

本文較全面、系統地綜述了國內外生物質熱解液化制取生物燃油技術研究發展現狀及存在的問題，主要研究內容有： （ 1 ）實驗、測定了20種常見生物質的能量（發熱量）和c 、 h 、 n元素含量，根據實驗結果分別建立了以h和c為自變量的生物質能量預測經驗公式，並通過r _ （ 0 . 05 ）檢驗；為閃速熱解液化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便； （ 2 ）選擇了8種生物質試樣作了等加熱速率（ 10 min 、 20 min 、 40 min 、 60 min ）和恆溫加熱的tg和dtg實驗，根據實驗數據和阿倫尼烏斯公式建立了生物質熱解反應動力學微分方程，並採用goast - redfem積分法和p函數對其動力學參數進行了求解，解析出各種生物質的頻率因子和活化能參數，進而建立了各種生物質的熱解動力學模型，為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述，提供了理論和依據； （ 3 ）為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間，在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定，得出生物質的長徑比（ l d ）一般在5 . 0 6 . 0之間，平均為5 . 3的結果； （ 4 ）採用復雜溫度場傳熱學理論對生物質傳熱過程及充分熱解時間理論進行了研究，解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間（ t ） ，得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果，為閃速熱解反應器固相滯留時間設計和預測提供了理論依據； （ 5 ）根據上述實驗結果，綜合運用工程力學、工程材料、機械設計學原理，推導、建立了轉錐式閃速熱解反應器物料滯留時間（ ）與轉速（或頻率）合理匹配理論； （ 6 ）提出了轉錐式閃速熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。

These spectral changes are generally attributed to a progressive decrease in muscle fiber conduction velocity with the accumulation of h + in muscle in the development of muscle fatigue. however, there are a few other experimental studies revealed it was not all

長期以來，人們傾向認為在肌肉疲勞過程中semg信號功率譜左移可能與h ~ +積累誘發肌纖維動作電位傳導速度下降有關，但有研究提示此結論並不可靠。

The development of mass transfer in the system of vapor - liquid - liquid three - phase distillation from trays was introduced, the effects of the hydrodynamic conditions e. g. vapor velocity and ratio of liquid to vapor loading and physical properties of liquid phase, including surface tension, interfacial tension, viscosity or dispersion viscosity, density, relative volatility etc. and the volume ratio of oil to water on mass transfer were discussed systematically, the influence of the second liquid on mass transfer efficiency was also investigated, a gnat deal of viewpoints and suggestions having been put forward in this paper are significant important for optimizing design of distillation tower

摘要介紹了氣液液三相精餾塔板傳質性能研究的進展情況，討論了氣速、液氣比等操作條件，表面張力、界面張力、液體的粘度或分散粘度、密度和相對揮發度等物系性質以及油水體積比等多種參數對傳質效率的影響，探討了第二液相的存在對傳質的影響，文中的許多觀點獲和建議對于優化精餾塔的設計具有重要的指導意義。

Raising speed and heavy haul is development tendency of the railway transportation. however, with the rising of the velocity, empty wagon derailment accident accurs more frequent, which brings our country and people huge loseaimed at this problem appeared in the dynamic perfermance of wagon with the increasement of speed, lots of researches are done in this paper

提速和重載是我國鐵路運輸的發展方向，但提速以來，貨車空車脫軌事故頻頻發生，給國家和人民的生命財產安全造成了重大的損失，本文針對空車脫軌這一實際情況對鐵路貨車動力學性能進行了認真地分析和討論。

The vibration problems in pumped storage hydroplant are outstanding, due to their high - velocity flow, high - speed units, etc. on the base of summarizing the development of inverse analysis methods, this paper proposed a dynamic inverse model for underground hydroplant was built, combining the modal analysis and inverse numerical computation

點，提出採用實驗模態分析與動力反演分析相結合，以試驗模態與計算模態某種偏差為目標函數，建立通用的結構最優化動力反分析模型。引入改進的遺傳演算法，實現了其與ansys軟體的介面。

With the development of material technology, information technology, automation control technology, aeronautics and astronautics technology, the modern flight vehicles are required of high velocity, light structure, great flexibility and super maneuverability, which lead to the serious aeroelastic effects such as aeroservoelasticity, the coupling among the aerodynamics, structure, and control system

隨著材料技術、信息技術、控制技術以及航空航天技術本身的飛速發展，飛行器開始向高速度、輕結構、大柔性、超機動的方向發展，氣動彈性效應更加嚴重，從而引發了氣動、結構、控制系統相互耦合的氣動伺服彈性力學問題。

By comparing the velocity of money and the monetization degree of economy in different countries, this thesis demonstrates that the velocity of money in china is comparatively low and the monetization degree of economy is fairly high, these may result in the whole payment risk in china and hidden impediments in economy development

通過各國貨幣流通速度及經濟貨幣化程度的比較分析，說明中國的貨幣流通速度低；在所分析的國家中，當前m2 gdp的水平是最高的。這增加了中國經濟的整體支付風險，為經濟的發展埋下了隱患。

It is well known, the multi - media can deal with tremendous data, in former web condition, confined to the velocity of the connected modem equipment, real - time transmission of the connected media is usually impossible, though it is possible to make the connection come into reality, the loss of the data is very serious, the transmission of the picture may pause or stop obviously and can not reach the ideal effect without practical operation, however, in recent years with the development of the new development in connected web technology, such as xdsl and the mature popularization of the broad band technology like optical fiber

眾所周知，多媒體的數據吞吐量往往十分巨大，在以前的網路狀態下，受制於modem等網路接入設備的速率條件，連續媒體的實時傳輸往往是不可能做到的，即使能夠勉強連接成功，其數據包的丟失現象也是十分嚴重的，圖像的傳輸有明顯的停頓甚至停止的現象，達不到理想的效果，所以並不具有實際的可行性。但隨著近年來網路接入新技術的發展，如xdsl 、光纖等寬帶技術的成熟和廣泛應用。

In recent years, the step of whole world economy unify is more quickly, the market degree of our country is more deeply after entering wto, the competence in market is impetuosity gradually, all of these made our country enterprises being faced with a good many fights. at the same time, the fast development and abroad application of imformation technology brought important and deep infection to management of enterprises, and in great degrees changed the business mode and principle of the market competence. so if our country enterprises want to win a domain, they must use advanced imformation technology to arm themselves in order to increase satisfaction of clients, control the cost of management, shorten the time of fabricate and expend of material, accelerate the velocity of merchandise, increase efficiency of management, upgrade the power of competence. and that to implement enterprise resource planning - erp is just to change enterprise ’ old management pattern, to advance enterprise ’ level of management using information technology, to optimize enterprise ’ management pattern. so to research impling erp in modern enterprise and appraising its performance is much important to our enterprises to reply the compete more and more intense from international and stat

同時，信息技術的迅猛發展和廣泛應用對企業經營和管理產生了重要而深遠的影響，在很大程度上改變了商業模式和市場競爭法則。因此要想在激烈的競爭中贏得一席之地，我國企業必須盡快採用先進的信息技術改造和武裝自己，以提高客戶滿意度、控制經營成本、縮短物料製造配銷的時間、加速存貨周轉率、提高經營效率，提升企業競爭力。而實施企業資源規劃? ? erp正是改變企業陳舊的管理模式，利用信息化來提升管理水平，優化管理模式的利器，因此，研究erp在現代企業中的應用及其績效評價問題，對於我國企業應對日趨激烈的來自國際國內的競爭具有積極而深遠的意義。

With the development of science and technology, not only the flight velocity of flying objects becomes higher, but also the flight distance increases rapidly

隨著科學技術的發展，高速遠程飛行物體的尺寸變化范圍增大，速度越來越快，飛行距離大幅度增加，要求遠距離飛行后命中目標的精確度越來越高。

Nowadays the institution of economic residence has many problems such as each doing things in his own way, content defect, velocity slowing, development imbalance and inefficiency

當前經濟戶口管理制度存在著各自為政，內容不完整，推進速度慢，發展不平衡和效率不高等諸多問題。

The development trend in explosives is towards high density, high energy and low sensitivity. the replacement of nitro groups by furoxan groups can result in increase of density, detonation velocity of explosives. so these superior performance of benzofuroxan system compounds have aroused much attention

含能材料的發展趨勢是向著高密度、高能低感的方向發展。一個氧化呋咱基代替一個硝基，可以使含能材料密度提高，爆速增加，苯並氧化呋咱類化合物作為炸藥所具有的這些優良特性引起了人們的高度興趣。