流動極限 的英文怎麼說
中文拼音 [liúdòngjíxiàn]
流動極限
英文
flow limit- 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...
- 極 : i 名詞1 (頂點; 盡頭) the utmost point; extreme 2 (地球的南北兩端; 磁體的兩端; 電源或電器上電流...
- 限 : Ⅰ名詞(指定的范圍; 限度) limit; bounds Ⅱ動詞(指定范圍, 不許超過) set a limit; limit; restrict
- 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
- 極限 : 1 (最高的限度) the limit; the maximum; the ultimate limit; limitation; extremity; tipping point...
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The research studies affect of the hydraulic characteristic of storage equipment to water quality and put forward hygienical limit hrt to storage equipment by mathematics model
研究蓄水裝置水力特性對水質的影響,應用數學模型對蓄水裝置提出了衛生學極限流動時間和停留時間。The outside of this chip adopts boost structure to drive up to seven white leds with the input voltage ranging from 3v to 5v. series connection of the leds provides identical led current resulting in uniform brightness
電路的電源輸入在3v 5v變化,採用boost電路結構升壓,在極限情況下最多可驅動七個白光led ,由於led串聯,因此各led電流完全匹配,亮度一至。Firstly, the status of our nation ' s water resources, flood and arid hazards is overviewed to illustrate the necessity for study on dynamic control of flood season limited water level. disadvantages in traditional limitsd water level design, static control of limited water level design, static control of limited water level and fuzzy limited water level curve are pointed out, and mending methods for these are introduced. dynamic control and its key problems are analyzed hi next section. the allowable range of limited water level is determined, so as the allowable extreme risk index. the definition of extreme risk is re - illustrated, risk analysis methods in reservoir operation is discussed either. according to the definition of extreme risk rate, the allowable extreme risk rate of reservoir is systematically demonstrated with variant extreme risk indexes and flood season limited water level
本文首先闡述了我國水資源狀況和水旱災害、說明水庫汛期限制水位動態控制研究的必要性;介紹了傳統汛限水位設計、汛限水位靜態控制、模糊汛限水位過程線存在的問題及其初步改進方法;分析汛期限制水位動態控制的方法及關鍵問題;進一步闡述了水庫極限風險率的定義;根據極限風險率定義,詳細敘述了不同極限風險指標時、不同汛期限制水位下起調,水庫所能承受的極限風險率計算方法。然後,基於極限風險率計算方法,以白石水庫為背景,研究「考慮壩體自身安全、考慮壩體安全與下游防護對象控制下泄流量的汛限水位動態控制的極限風險率」 。Integrating the power flow program with the tools matlab simulates the transient response of the distribution networks with the direct combination wind generator under disturbances, it provides the credible rationale to the research on stability and maximal penetrable power
本文結合配電網潮流程序,利用matlab作為模擬工具,模擬包含直接並網風能轉換系統的配電網路在受到擾動情況下的暫態響應,對含有風電場的電力系統穩定性研究及風電場極限穿透功率的研究,提供了可靠的理論根據,有重要的現實意義。Relaxation limit of a unipolar isentropic hydrodynamic model for semiconductors
一類單極等熵流體動力學半導體模型的鬆弛極限The flow characteristics, distributions of current density and chemical components, and the performance of these two different designs are calculated and compared. the flow and mass transport characteristics are analyzed in detail, which indicate that strong forced convection is produced in the interdigitated flow field, which consist of dead - end gas channel that force the gases through the porous electrodes. results of comparison show that forced convection induced by the interdigitated flow field in the diffusion layer effectively enhances mass transport of reactants and products, thus leading to a higher cell performance and the limiting current density
在傳統流道設計的pemfc中,反應物從流道到催化層的供應和生成物從催化層到流道的排出主要是以擴散為主,而在交叉梳狀流道設計中,以流動帶動的對流傳遞則占據了主導地位,而且這種以對流為主的傳遞機理大大提高了反應物和產物傳遞速率,從而有效地改善了電池的極限電流密度和極化性能等特性。A margin of the viscous quantum hydrodynamic model
粘性量子流體動力學模型的一個極限( 8 ) six branches of the flow in a rotating square duct are obtained. the limited points of every branch are different for different dean number. an eight - vortex phenomenon is also found
( 8 )對于正方形截面的分叉問題,本文得到六種無條件穩定和對稱穩定的流動分支, dean數不同,流動分支的極限點不同,發現正方形截面最多可以存在八個渦。In order to preserve the capital and to meet foreign exchange requirements for market intervention purposes, the exchange fund maintains very high liquidity and restricts its investments to a mix of liquid securities of the highest credit quality
外匯基金為了保障資本以及滿足進行市場干預所需的外匯需求,必須保持極高的流動性,並將投資限制在獲得最高信貸評級而且流通量高的短期證券的范圍內。This paper is consisted of two major parts : one deals with the general working performance of the fmghp by setting up mathematic model and developing computer procedure, getting the datum related to the capillary flow and heat transfer, analysing the working characteristics of fmghp in different working temperature, heat flux and inclination angle etc. in this part, the prediction of capillary and boiling limit are also included. the other major part studies the flow and heat transfer characteristics in the micro - film region formed by the meniscus attached on the metalic fin in the micro rectangular groove. investigations on the influence of width of groove and other factors on heat transfer in this region have been made. the importance of this micro - region in the heat transfer of the entire heat pipe has been unveiled. the heat transfer characteristics gotten by this research could be used in design and application and also optimization of this kind of fmghp
本文在大量查閱現有國內外文獻的基礎上,總結並綜合前人有關微槽平板熱管理論研究方面的成果,對單面刻有槽道的微槽平板熱管進行了較為深入和細致的研究。本文的研究共分兩大部分,其中第一部分考察了該型熱管的整體工作表現,通過建立數學模型和開發相應的計算程序,得到了熱管內部毛細流動和傳熱的數據,分析了熱管在不同工作傾角、不同加熱熱流以及不同工作溫度等情況下工作特性的變化規律,考察了汽液界面上的剪切作用對熱管傳熱量的影響,並且進一步在理論上預測了該型熱管的毛細和沸騰極限。How many pumps were turned on should be based on the dynamic design according to project target. and how many pumps should be in operation in standard shut off procedure. it was approved that although the theoretical boundary of decline of groundwater level is 10m, the actual boundary is only about 6m
提出了一些與真空預壓加固地基設計相關的概念和處理方法,如定義真空預壓加固區場地形狀系數,提出按加固土體體積來確定射流泵數量、根據工程需要動態設計開泵量、增加停泵標準中對開泵量的規定等設計思想等,論證了真空預壓加固地基時地下水位下降的理論極限深度為10m ,而實際極限深度約為6m 。Fem analysis of associated and non - associated flow rules in theory of slip line field
滑移線場理論中不同流動法則的極限分析有限元解A new flow rule was recommended, and it offered a new way for obtaining the approximate solution of the ultimate load with the theorem
並建議了一種新的流動法則,對應用定理求極限荷載的近似解給出了新的解題思路。This constitutive model describes the non - associated plastic flow of granular material, and replaces the assumption that granular material complies with associated flow rule in the limit " equilibrium theory of granular material
該本構模型反映了散體材料的非相關塑性流動,取代了散體極限平衡理論中散體材料服從相關流動法則的假定。The resolution of optical system can not reach its diffraction limit because of the phase aberrations caused by atmospheric turbulence and other wavefront errors. adaptive optics technology uses deformable mirrors to perform dynamic phase modulation and endow optical system the ability to decrease the influence of dynamic wavefront errors
大氣湍流等動態干擾使光波面相位發生畸變,使光學系統的解析度無法達到其衍射極限,而自適應光學系統使用變形鏡對光波面進行動態相位調制,賦予了光學系統能動可變的能力而有效地解決了動態干擾的問題。The core - mantle boundary is the closest researchers can get to the much more intense and complicated magnetic field that exists within the core, where magnetic fluctuations actually originate ; strong electric currents in the core prevent direct measurements of the magnetic field there
地核內具有更為劇烈、復雜的磁場,而且也是磁場變動的真正發源處,但是研究人員可推算的極限是在地核?地函交界處;因為地核內的電流極強,因此無法直接測量內部的磁場。A simplification for hydrodynamic model through relaxation limit leads to drift diffusion model
通過時間的鬆弛極限得到流體動力學模型的一種簡化形式,即飄流擴散模型。They are run mainly by very experienced kayakers and often feature on extreme kayaking videos, made to show off the skills of the very best in the sport
它們主要是用作經驗豐富的劃艇者的競賽之地,經常出現在那些該運動的高手展現技藝的極限漂流錄像片上。Based on the qualitative theoy of differential polynomial system, algorithm to calculate the focal values, the construction of small amplitude limit cycles, hirsch ' s monotone theory and the center manifold theorem etc, we apply mrealroot algorithm to many problems, such as to obtain the real solutions of polynomial systems, to confirm the number of limit cycles in differential system and to construct the limit cycles
結合平面微分多項式系統的定性理論,計算焦點量的演算法,小擾動極限環的構造, hirsch的單調性理論和中心流形定理等, mrealroot演算法在大量具體問題,包括實根分佈、小擾動極限環個數以及高維系統極限環構造等方面都有廣泛的應用Electromagnetic compatibility - limits - limitation of voltage changes, voltage fluctuations and flicker in public low - voltage supply systems, for equipment with rated current 16 a per phase and not subject to conditional connection
電磁兼容性.極限值.額定電流為16a低壓供電裝置電壓波動極限值分享友人