流動前緣 的英文怎麼說

中文拼音 [liúdòngqiányuán]
流動前緣 英文
flowing front
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 前 : Ⅰ名詞1 （在正面的） front 2 （次序在先的） first; top 3 （過去的; 較早的） ago; before; preceding...
  • 緣 : Ⅰ名詞1 （緣故） reason 2 （緣分） predestined relationship 3 （邊） edge; fringe; brink Ⅱ動詞（攀...
  • 流動 : 1. （液體或氣體移動） flow; run; circulate 2. （經常變換位置） going from place to place; on the move; mobile
  1. In this paper, on the basic theories foundation study of summary people of the past, aiming directly at whether the shelter forest can deposit the sand and how powerful it can. we select the oasis in ulan buh desert as the study plot, and study the function of the shelter forest reduce the " sand " and " dust ". we draw the following conclusion. first, in the fixed and semifixed sand lands, which grow the natural sand - binding plants, the coverage of plant in the fixed and semifixed sand land is 26. 4 % and 10. 3 %, respectively, the amount of sand drift decrease 93. 38 % and 81. 91 % comparing with the migratory sand land which have no plant coverage in the same wind speed and the range of 0 - 40cm above the ground

    本文以前人的研究為基礎針對「防護林體系是否有降解作用，有多大的降解作用」這一問題以烏蘭布和沙漠邊緣的防護林體系為研究對象，研究了防護林體系對「沙」 、 「塵」的降解作用，得出以下結論： （ 1 ）在距離地表0 - 40cm范圍內，同一風速下生長有天然固沙植物，植被蓋度分別為26 . 4 、 10 . 3的固定、半固定沙地上，地表起沙量分別比無植被生長的流動沙地降低了93 . 38 、 81 . 91 。
  2. To better understand the scientific connotation of the important thought of " three represents ", " to represent the advancing direction of chinese advanced culture " in particular, and to apply toynbee ' s " challenge - response " model to the analysis of the interactive relations between all kinds of ideologies, especially between ideological mainstreams and subordinatives existing in philosophical field both at home and abroad can make it clear that the important thought of " three represents " is the response to modern challenges

    摘要在深入領會「三個代表」重要思想的科學內涵，特別是「代表中國先進文化的前進方向」的基礎上，正確運用湯因比「挑戰應戰」模式，分析世界和中國哲學界存在的各種思潮之間，包括主流和邊緣之間的互動關系，可以看出「三個代表」重要思想是對于現代挑戰的應戰。
  3. Fluid flow and heat transfer characteristics in the leadingof blades at rotating state

    旋轉狀態下渦輪葉片前緣的流動與換熱
  4. Analysis on the aerodynamic behaviors of the swept leading edge shocks in high load axial compressors

    軸流壓氣機掠形前緣激波動力學效應的模型分析
  5. Abstract : approximate methods for calculating aerodynamic heating rates on space shuttles are discussed. various methods are given for predicting the heating rate at axisymmetric stagnation points, general three dimensional stagnationpoints and the leading edge stagnation point of wings. numerous laminar and turbulent heating techniques for flat plates and cones are analyzed and compared. a brief review of some methods is presented to predict heating rate for winward centerline and lateral direction off the symmetry plane. the results show that the methods are simpler and can guarantee enought precision for predicting aerodynamic heating environment of space shuttles

    文摘:介紹了國內外預測航天飛機氣動加熱的工程計算方法.給出了軸對稱、非軸對稱和機翼前緣等各種外形駐點熱流密度的計算，分析和比較了平板、錐體的層流和湍流熱流密度計算的各種方法，概述了航天飛機迎風面中心線和離開中心線橫向熱流密度的計算.計算結果表明，本文方法用在航天飛機氣動熱環境初步設計中比較簡單並且有足夠精度
  6. Against the way so called " top to down " by which most of the educational study deduct the certain theory, this paper prefers to use the collaboration of the way of " top to down " and the way of " bottom to up ", but the preferable way is " bottom to up " : i go near the world of the teacher ' s life, listen to the voice of the teacher, i make an attempt to keep the teacher ' s real situation, motion, chance and feeling, i welcome to invite readers to give an ear to their stories and understand the teacher ' s personal practical theory, also, expect me to do tiny but deep - ground task for verbalism in the educational study by standing the position on the chinese reality

    與當前教育研究中大量的從既有理論框架中推演出某種論點並加以論證的所謂「自上而下」的方式不同，本研究更傾向于採取「自下而上」與「自上而下」相結合併以前者為主的策略：走近教師的生活世界，傾聽教師的聲音，用敘事的方式盡可能保留實踐中的情境、流動、機緣、感受，邀請讀者一同傾聽故事，並以此為基礎展開對教師個人實踐理論的理解，也期望通過立足中國現實土壤的研究為教育研究本土化做一點哪怕微不足道卻是扎實的工作。
  7. Deposit characters have fine succession, however, because of the underwater distributary channel ' s movement and migration, the scale of the shallow deposits and delta front deposit were different

    沉積作用都有很好的繼承性，但淺湖沉積分佈范圍以及三角洲前緣砂體的規模和展布特徵隨著水下分流河道的遷移和擺動而有所不同。
  8. After analyzing, the author got the basic character of tidal flat hydrodynamic : the time of flooding on bare flat and ebbing is basically the same and the time of flooding on pioneer zone of salt marsh is a little short ; the process curve of current speed on bare flat did not appear peak value on the beginning of flooding and at the end of ebbing but presented double peak, that is, it presented double peak in winter and spring and ebbing peak value disappeared in summer and autumn, salt marsh presented single peak character in a year and the process curve in tidal creek presented double peak ; all current direction on every spot presented gyration current and the current speed changed rapidly during the high water level without obvious slack water period

    分析得到了潮灘水動力基本特徵：光灘水位漲潮和落潮時間基本相等，而鹽沼前緣帶水位漲潮時間略短；光灘流速過程線在漲潮初和落潮末出現峰值，呈現「雙峰型」特徵，鹽沼前緣帶則冬、春季節呈現「雙峰型」 ，夏、秋季節落潮峰值消失，鹽沼帶四季呈現單峰特徵，潮溝內過程線為「雙峰型」 ；各測點流向均呈現回轉流特徵，在高水位時流向迅速改變，不存在明顯的憩流。
  9. When cable used circumstance can prevent thermoplastic flow and admit reduce insulated resistance, if shorten working hours, pvc insulated and nylon jacketed wires and cables ' operating temperature can increase to 105 s which can continuous operating temperature 90

    當電纜使用環境可防止熱塑流動和容許減小絕緣電阻的情況下，能連續90使用的pvc絕緣尼龍護套線，在縮短總工作時間的前提下，其工作溫度可提高至105 。
  10. The micro boundary layer experiment is carried out from 8mm to 14mm of a 15mm - long micro plane. re numbers vary from 35, 000 to 150, 000 and 4 different mach numbers are selected. some new characters are discovered, such as velocity curve factor is smaller than that of well developed normal scale turbulence boundary layer

    微尺度平板邊界層實驗選取從總長度為15mm的微平板前緣8mm到14mm之間的7個站位， 4種馬赫數， 13個不同雷諾數（從35000到150000 ）的實驗狀態，發現了該尺度下邊界層流動的一些新的特點，如形狀因子比常規大尺寸下充分發展湍流狀態的形狀因子更小等。
  11. This article discovers that the right land employment which is prosperous gradually in recent years, as an important practice of the land ownership transformation is also profoundly reconstructing current china countryside social. class structure : some countryside social groups ( members were more ) has obtained more resources and opportunities owing to the change of occupational structure which resulted from the land pass and realized the up flow of social stratum status ; some countryside social groups ( members are less ) fell into the social lowest class because of congenitally deficiency, comparatively further edge than before ; there are still some members and a few social groups who have monopolized and controlled more community resources and opportunities by the system authority and the social network which weaved on as well as the geographical superiority, has formed and consolidated its ultra community ' s outstanding person status

    近年逐漸興盛的土地使用權流轉作為一項重要的地權變革實踐也正在深刻地重構當前中國農村社會階層結構：一些農村社會群體（成員較多）借土地流轉引發的職業結構變動獲得了更多的資源和機會，實現了階層地位的上向流動；也有些農村社會群體（成員較少）則因先天不足而淪入社會底層，並進一步邊緣化；還有一些成員極少的社會群體借制度性的權力和以此織就的社會網路以及區位優勢，壟斷和控制了更多的社區資源和機會，形成和鞏固了其超社區的精英地位。
  12. Fristly, according to the non - linear characteristics of twelve - phase rectifier, the thesis gives the calculation model for a short circuit in the subway traction power supply networks which provides the academic foundation for the design of the setting values and the simulation of protection. secondly, the thesis designs the dc feeder protection and control of subway, and gives the principle of setting accordingly, after it analysizes the characteristics of electric current under tow load and short circuit and considers severel factors. to validate the rationality of the design, the thesis simulates the transient electric current under two work conditions ( starting and passing the insulation ) ahd short circuit

    其次，本文在詳細分析地鐵牽引負荷電流和饋線短路故障電流特點的基礎上，考慮了直流保護系統設計應注意的幾個因素，對地鐵饋線保護與控制進行配置，給出了相應的保護整定原則，並針對某一地鐵供電系統在詳細分析了兩種工況（機車起動與過分段絕緣）的電流暫態過程，得到了電流計算的數字模型，結合前面提出的短路模型，進行了地鐵饋線保護的模擬，經模擬表明本文的保護設計是合理的。
  13. Then a laplace equation can be deduced and through computation, the blade profile coordinates and geometry of the cascade result from an analytical solution. next, an optimization method, taking the geometry parameters of the unclosed profile as its objective functions, is used to obtain an optimized blade profile. and last, the optimized profile is refined with round arcs added in the leading and trailing edges

    本文採用的勢、流函數解析法法中，將無旋方程用新的類無旋方程替代，這樣在計算域上得出速度場的解析關系式，計算得出初始葉型；然後以此初始葉型的幾何參數，例如前尾緣的封閉程度和葉型彎角等為目標函數，通過優化程序對初始速度進行自動調節直到目標函數值最小為止。
  14. When the psb amplitude is weak, a series of hair - pin vortex will be formed. the formation, diffusion, breakup of the front edge of hair - pin vortex and the break of the head of hair - pin vortex lead to the first instability and form the slug structure

    在一定幅值的psb弱擾動作用下，圓管流動中出現一系列發卡渦，發卡渦前緣處環形渦的形成、擴散和破裂以及發卡渦頭部的破碎導致了流動的第一次失穩，產生塞流結構。
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