氣動力作用 的英文怎麼說
中文拼音 [qìdònglìzuòyòng]
氣動力作用
英文
aerodynamic action-
The product is made of imported fda standard iatrical silica gel complex material. it is innocuous, odourless, without side effects, and being felt soft and non - eyewinker in use
採用進口fda級醫用硅膠復合材料製成,無毒、無味、無副作用。 3 、止鼾器兩側加設導氣槽,使呼吸更暢順,並利用空氣動力學原理便止鼾器貼緊鼻中隔。Within the field of ground effect, aerodynamic forces of the wing - in - surface effect crafts are not only decided by the angle of attack, but also by the flying height, and they lead to more complicated stability problems
在地效作用區域內,地效飛機的氣動力不僅與迎角有關,而且與飛行高度有關,因而其飛行穩定性問題更為復雜。"aerodynamics" defines the pressure fields and loads that exist on a launch vehicle due to the reaction of ambient flow.
「空氣動力學」規定了由於繞流反作用在發射飛行器上存在的壓力場和載荷。The work module of rudder was discussed and studied by simulation in side jet and aerodynamic compound control manner, the effect on guidance accuracy by control cycle of attitude control engine and action cycle of control loop was simulated
重點對採用燃氣動力氣動力復合控制方式中舵系統的工作模式進行了探討及模擬研究,對姿控發動機控制周期及控制迴路工作周期對制導精度的影響進行了初步模擬研究。The ejected coolant interacts with the external flow near the endwall and generates aerodynamic and thermodynamic losses in the process. this reduces turbine stage efficiency and together with the consumption of cooling air is detrimental to the overall cycle efficiency
但這種方法中噴射的冷空氣與端壁附近的外流場相互作用產生氣動力和熱動力損失,並且消耗冷卻空氣,從而損害渦輪的整體循環效率。Electro - hydraulic servo loading system ( ehsls ) is an important simulation system in hard ware - in - loop flight simulation laboratory, which can simulate aerodynamic loads acting on flight vehicle, such as missiles, planes. its performance of test is important on the design of flight vehicle
電液伺服負載模擬器是半實物模擬試驗室中模擬飛行器在飛行中舵面所受空氣動力載荷的重要設備,它的試驗能力高低對飛行器設計起著重要作用。However, the team has been working hard over the summer break to ensure a third chassis - along with a new aerodynamic package - is ready for istanbul
不過,車隊工作人員的辛勤努力使得其連同一項新的空氣動力學裝置在i投入第三車手的座駕中使用。As a hard - core part of epikarst ecosystem, soil makes a hinge action in the karst process. it forms a leach layer between rainfalls and carbonate and gives a great much time and space in the karst process. soil co2, a very pivotal factor in the karst dynamic factors, makes an action of driving forces in karst dynamic system
土壤作為表層帶巖溶生態系統的核心部分,在巖溶過程中起著樞紐作用,它的存在使得大氣降水與碳酸鹽巖之間形成一個「過濾層」 ,賦予巖溶作用更廣闊的時間和空間,其中土壤co _ 2是個非常關鍵的因子,它是巖溶作用的重要物質來源,在巖溶動力系統中起著驅動力作用。For the tectonic coal , the properties of higher porosity and lower permeability make it capable of keeping higher gas pressure ; both of the “ isolating action ” and “ gas - cushion action ” cut down the resistance against outburst ; the specifity of high - defomed - extent makes desorption , escape and flowing quickly become possible ; the existing of weak - seam or “ thoroughfare - seam ” create suitable conditions for the initial erupting and continued developing of coal and gas outburst. on the whole , it is the synhesis action of all factors , which leads to outbursts. the existing of tectonic coal with certain thickess is the essential condition of coal and gas outbursts , but not the sufficient condition
高空隙率、低透氣性使構造煤能夠保持較高的瓦斯壓力;破碎性、 「隔離」作用及「氣墊」作用,使構造煤抵禦外力作用的能力大大降低;構造煤變形幅度大的特性,為瓦斯的迅速解吸、放散和快速流動創造了條件;構造煤薄弱分層或「通道層」的存在,則為煤與瓦斯突出的初始激發和持續發展奠定了基礎;上述因素的共同作用,影響和制約了煤與瓦斯突出的強度和分佈.盡管如此,一定厚度的構造煤的存在只是發生煤與瓦斯突出的必要條件和有利條件,而非充分條件The sedimentary water is the carrier and main driving force of petroleum migration and accumulation, which controls the fluid movement and appears centrifugal flow from the center to edge of basin, while penetrated water formed by infiltration of atmospheric precipitation and surface water appears centripetal flow from the edge to center of basin by gravity process
沉積水是油氣運聚的載體和主要動力,對盆地流體的運動起控製作用,由盆地中心向盆地邊緣呈離心流;滲入水由大氣降水和地表水的滲入產生,受重力作用由盆地邊緣向盆地中心呈向心流。Compared with a delta wing aircraft, the double - delta wing configuration has better aerodynamic performance at high angles of attack. an operational analysis was introduced as a method for evaluating training effectiveness of trainer aircraft. approaches to the engineering estimation of aerodynamic characteristics for aircraft with a double - delta wing configuration were studied, and the procedures for determining aircraft performance indices formulated. taking training effectiveness as the objective function and geometric parameters of the wing platform as design variables, through a numerical multivariate optimization arithmetic, the conceptual design optimization for a certain fighter trainer aircraft with double - delta wing configuration was carried out under the constraints of tactical and technical requirements and interrelated geometry. agreement of a calculation example with engineering practice indicates that the optimal design has higher training effectiveness than the baseline design, and in addition, improves the structural force - bearing conditions
雙三角翼氣動布局比三角翼飛機具有更好的大攻角空氣動力特性.引入了評估教練機訓練效能的作戰分析法,研究了雙三角機翼布局飛機空氣動力特性的工程計算途徑以及飛機性能指標的確定方法.以訓練效能作為目標函數並選取機翼平面形狀的幾何參數為設計變量,採用多變量數值尋優方法,在戰術技術指標及相關幾何約束條件下,對某高級教練機的雙三角機翼氣動布局方案進行了優化選擇.算例表明最優方案不僅比原準方案具有更高的訓練效能,還改善了結構的受力情況,與工程實踐吻合The dj - a gynecological examination bed is uses the electrically operated lead screw to make the surface of bed fluctuation the power supply, when use so long as inserts the power source, controls the surface of bed with the foot the fluctuation, the seat back cushion and the cushion adjustment is uses was mad the spring makes the poweruses the electrically operated lead screw is the power supply, surface of bed fluctuation, the seat back cushion and ( manually controlled ) sits the board the angle adjustment the switch to control by the foot control, easy to operateif must cause to inspect the bed to move the position, blooms a base four feet turn of slightly tight pine, transfers to needs the position afternoon tight foot turn then the foot pad is the add - on component, may conveniently install according to the surgery need or dismount
型婦科檢查床是採用電動絲桿作床面升降的動力源,使用時只要插上電源,用腳控制床面的升降,靠背和坐墊的調節是採用氣彈簧作動力.採用電動絲桿為動力源,床面的升降,靠背和坐板的角度調節均由腳控(手控)開關控制,使用方便.如果要使檢查床移動位置,將底部四個腳輪的稍緊松開,移到所需位置后稍緊腳輪即可.腳墊是附加裝置,根據手術的需要可方便地裝上或卸下。An efficient wind field simulation technique for wind - induced vibration analysis of long - span bridges is first introduced in this paper , and the statistic characteristics of the simulated wind field are then discussed on this basis , the time - domain expressions for the buffeting and self - excited forces acting on long - span bridges are further given a simple and practical method is presented for the non - linear parameter identification involved in the calculation of self - excited forces by using the above theory , the wind field and aerodynamic forces acting on the hong kong ting kau bridge are obtained the time - domain buffeting response analysis of the bridge shows that the analytic results agree quite well with the experimental ones this indicates that the theory presented in this paper has reached a practical level
介紹了一種快速高效的用於大跨度橋梁風致振動分析的風場模擬方法,並對模擬風場的統計性質進行了討論和驗證在此基礎上進一步給出了大跨度橋梁抖振力和自激力的時域表達方式,其中針對自激力計算中涉及的參數識別問題,提出了一種簡單實用的非線性參數識別方法本文採用上述理論,獲得了作用於香港汀九大橋上的風場和氣動力,據此對大橋進行的抖振響應時域分析表明,計算結果與風洞試驗結果吻合良好,說明文中述及的這套理論已達到實用的階段Slowed, pulling away from the invisible dark matter particles. the researchers said they could detect the dark matter particles by their gravitational pull on the surrounding visible particles
當氣雲相撞時,可見氣體粒子運動速度減慢,這正說明圍繞在周圍的不可見粒子對它們產生了引力作用。The main factors affecting percolation in low permeability reservoirs include stress, threshold pressure gradient, slippage effect and water - blocking effect, which play various roles on percolation, but all will result in non - linear percolation in the end
影響低滲氣藏滲流特徵的主要因素有應力作用、啟動壓力梯度、滑脫效應和水鎖效應等因素,並且這些因素對滲流影響各有不同,但最終均引起低滲氣藏滲流的非線性化。Study on quality standards of yiriqing oral liquid
益氣潤腸液對虛證便秘肛腸動力作用的研究And the author pointed out that frost would be eliminated when the drives of airflow was greater than the adhesion work of frost, rather than the result of the stagnant heat of airflow " melted " frost
指出,氣動除霜並不是氣流的滯止熱「融化」了霜層,而是因為氣流的動力作用所產生的剪切應力大於霜層與翅片的粘附功而出現的必然結果。The terrain effect force wind ' s speed reducing and wind ' s direction turning to left with contrasting the experiments of numerical simulation the text analyses the structure and microcosmic character of sea wind in zhoushan maritime space and consanguineous connection between sea wind and action of dynamical and thermodynamic. the task gets the result of case a by using t213 datum of weather center and contrasts it with the actual sea wind. the task establish a foundation in order to use this mode in the environmental forecasting
通過數值模擬對比試驗,分析了舟山海域海面風的結構和微觀特徵,以及海面風與動力作用(復雜地形)和熱力作用(海陸熱力差異)之間的密切關系。進一步利用國家氣象中心提供的t213高解析度預報場檢驗海面風風場的數值預報效果,最後將其結果與實際觀測作比較,為將該模式投入環境(海流,海浪,風暴潮等)動力預報奠定基礎。On the basis of looking up a lot of referenced works, the phenomenon that lateral jet injected into the external air stream surrounding an intercepting missile is analyzed. the effects of jet interaction on forces and moments are described by interaction amplification factor, and the algorithm to calculate the interaction amplification factor is presented, then the motion model and the dynamics model of interceptor are established according to the previous analysis
根據大量參考文獻的結論,分析了側向噴流射入攔截彈外流的流場特徵,以干擾放大因子來描述干擾效應對力和力矩的影響,給出了放大因子的計算方法,進一步建立了噴流側向力和空氣動力作用下的導彈運動學和動力學模型。Firstly, the propagation of intense laser light in ionizing gases is analyzed including the ionization - modulation instability, the vectorial and nonparaxial effects, and the mechanism of laser energy loss. secondly, we analyze the propagation of intense laser light in plasmas, and effects such as the weakly relativistic nonlinearity, the ponderomotive force and the wakefield are analyzed
文中對強激光在電離氣體中傳輸的電離不穩定性、矢量非傍軸傳輸和能量損耗機制,以及強激光在等離子體中傳輸的弱相對論性非線性效應、有質動力作用和尾波場效應等都作了基本的分析。分享友人