等壓線間 的英文怎麼說
中文拼音 [děngyāxiànjiān]
等壓線間
英文
isobaric channel-
However, up to today with the development of social industrialization, especially the advance of building and building technology, the successive appearance of land three - dimensional usage such as high building, overhead railway, underground railway, air corridor, underground market, the wire of high voltage and last sewer etc., at the same time, many problems produced by the ownership and the usage of land space also have been put forward
土地所有權的行使及於土地的上下，土地所有權的效力「上達天宇，下及地心」 。然而，時至今日，隨著社會工業化的發展，特別是現代化土木、建築技術的進步，高樓大廈、高架鐵路、地下鐵道、空中走廊、地下商場、高壓電線、上下水道等土地立體化利用情形陸續出現，同時，因對土地空間所有和利用所產生的諸多問題也開始被提出。The paper studies the surface geometry of globoidal indexing cam by applying the theory of conjugate surfaces and the method of coordinate transformation, presents the equations related to the main inducement curvature of the cam profiles, analysis and deduces the equations of two circumscription curves, which judge if the conjugate surface could mesh properly. some calculate examples and conclusion are given. the surface equation of the globoidal cam and conjugate equation are established
論文首先在分析空間嚙合原理基礎上，採用坐標變換法推導出弧面分度凸輪的工作廓面方程、嚙合方程和壓力角計算公式，對弧面分度凸輪的嚙合特性進行了深入的分析和研究，對判斷曲面能否正確嚙合的依據如兩類界限線方程以及誘導主曲率等進行推導，並給出算例。( 2 ) the emission spectra of laser ablation metal copper plasma were measured. the detailed mechanism of plume emission of cu plasma was qualitatively explained using a simple model based on excitation of atom and ion in plume arising from inelastic collision between the elemental species and electron with high kinetic energy. under the local thermal equilibrium model, the electronic temperature of copper plasma was deduced to be in the 104 scale by its emission lines
（ 2 ） cu等離子體光譜：在420 570nm波長范圍內觀測了激光燒蝕cu等離子體的光譜和各發射譜線在等離子體中的空間分佈；比較了激光能量對cu等離子體發射光譜、電子溫度的影響；用局部熱力學平衡（ lte ）近似，測得cu等離子體的電子溫度為104k數量級；在不同背景氣壓下，觀測了激光燒蝕cu等離子體光譜的空間分佈。The atmosphere pressure gradient is an inverse measure of the spacing of the isobars on a weather map
氣壓梯度與天氣圖上等壓線的間隔大小成反比。Exchange non - clearane metal oxidate matter arrester is suitabe for the voltage protection of transformer switch cupboard, vacuum switch etc
交流無間隙金屬氧化物避雷器，適用於變壓器、配電屏、開關櫃、真空開關、輸電線路、電力計量箱、並聯補償電容器、旋轉電機等電壓保護。First, it was taken that a discuss about the effects of geometry parameters of each piezocrystal on direction parameters ( main lobe width, side lobe amplitude, elimination of grating lobes ), amplitude of ultrasonic pressure, element viberation pattern, mutual radiation among elements, efficient test regions, ability to keep accurate and near - field distance and so on. based on the direction of ultrasonic field in ulpa deduced by ourselves. in addition, on the base of integrating all kinds of factors, it was put forward that the principle and method for optimized design of geometry parameters of piezocrystals in ulpa transducer, and its design programme and interface were compiled
首先在推導超聲相控線陣換能器聲場的指向性的基礎上，就各個晶片幾何參數對指向性指標（主瓣寬度、旁瓣幅度、消除柵瓣） 、聲壓幅值、陣元振動模式、陣元間互輻射、有效檢測區域、精確控制能力、近場長度等方面的影響進行了論述，並在綜合各方面影響的基礎上，提出了晶片幾何參數優化設計的原則和方法，編寫了設計程序和界面。This testing system is designed according to the germany standard, to test many dynamic parameters in the moment of ignition time. such as the primary coil current, secondary coil current, high voltage and time signal
本文研製的測試系統依照德國標準進行設計，實現對點火瞬間產生的初級與次級線圈電流、電壓及時間等動態參數的測試。The primary theory of absorption and desorption was also explained. the effects of primary process parameters, such as hydrogen pressure, time and temperature on the magnetic properties of ndfeb have been researched. the structure and magnetic properties have been analyzed by means of optical metallographic microscopy, scanning electronic microscopy, x - ray diffraction analysis, infrared oxygen detector and magnetic properties measurement
本文設計了燒結ndfeb的氫爆制粉設備，對設備調試以及使用過程中出現的主要問題進行了簡要的說明，提出了一系列解決方法；闡述了吸氫、脫氫的基本原理；研究了氫氣壓力、通氫時間、氫爆溫度等基本工藝參數對磁性能的影響；利用金相顯微鏡和掃描電子顯微鏡， x射線衍射分析，紅外線測氧分析及綜合磁性測量儀等手段分析了材料的組織結構和磁性能。Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account
依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型，對中國古代木結構中的典型構造如：柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究： （一）通過木柱石礎靜摩擦試驗，測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律； （二）通過單柱承載力試驗，測定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量； （三）通過柱架低周反復荷載試驗，測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數； （四）通過斗?低周反復荷載試驗和受壓試驗，測定了古建築木構件與木構件間摩擦系數，斗?抗側移剛度，斗?恢復力特性及滯回曲線，斗?抗壓極限承載力及受力變形規律； （五）通過抬梁式殿堂間架模型振動臺試驗，測定了殿堂木構架結構自振周期，地震反應振形、阻尼特性及阻尼比；按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量，對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。However, some unique geographical characters, such as fire grounding, bamboo grounding and treetop grounding, can cause single phase high - impedance grounding fault frequently. since the voltage drops down very little and the voltage among three phases keeps symmetric, this fault increases the difficulty of the check on this fault
然而，由火焰接地、毛竹接地或樹梢接地等原因引起的單相高阻接地故障，由於電壓降小、三相線間電壓依然幾乎對稱，從而增加了高阻接地檢測的難度。A linear theory of rbwo with inner - slot coaxial structure is analyzed detailedly, and the equation of dispersive relation is deduced and computered numerically. 4. particle simulation is used in rbwo respective with coaxial and partial structure. in the simulation, the output parameters of rbwo such as phasespace, contour, vector, voltage, current, output power, interaction efficiency and microwave radiation
4 .對同軸和偏心返波管分別進行了粒子模擬，通過改變電壓、電流、電子注位置、磁場等參數來觀察返波管加了內開槽前後相位空間、等位線、矢量、電壓、電流、輸出功率、工作頻率的變化。In this paper, the temperature fields during liquid infiltration extrusion of composites are simulated with the fem, the seepage fields of liquid metal are simulated with the fdm. both the temperature fields and the seepage fields are coupled, the temperature variation curves, infiltration front process curves and velocity variation curves with time are obtained
本文採用有限元法模擬了液態浸滲擠壓復合材料浸滲過程溫度場，採用有限差分法模擬了液態金屬滲流場，將兩者間接耦合分析計算，得到了浸滲區域的溫度變化曲線、浸滲前沿及浸滲速度隨時間變化等曲線。With the help of this program, this paper does research on the moved backwards of the slide surface, lengthening the anchor section, the soil nail ' s total force, gets conclusion about relations between the soil nail ' s length and the slope ' s grade, height, soil ' s mechanical parameter ; relations between soil nail ' s total force and coulomb soil pressure. with the help of the large multiuse finite element program ansys, this paper analyzes the soil nailing in one - step ' s slopes, in two - steps " slopes, puts the emphasis on the axis force ' s distributing along the soil nail at each rows, the effect of both the excavating mode and the original slope figure to the axis force of the soil nail, the one another effect between the upper - step slope and the nether - step slope in the soil nail ' s axis force, gets conclusion about the design of soil nail at the first low, different slope body is the same with different excavating mode, the original slope figure has more effect to some than others because of the slope body, the reasonably design of the step width in two - steps slopes, the two - steps excavating and retaining has more virtue than the one - step ' s. through soil pressure analysis this paper does research on the differences and the links between the coulomb soil pressure theory and the rankin ' s, the vertical pressure at the slope surface when the slope surface is inclined and the retaining wall is rough, the soil pressure ' s distributing behind the panel, gets conclusion about the effect of both the slope body inner stability and the slope surface local stability to the soil pressure
通過分析比較，論證了對數螺旋線型比圓弧形作為邊坡的假設滑裂面具有較多的工程優點，並為此編制了一個採用極限平衡法分析土釘支護的fortran語言程序，以此作工具對滑裂面的后移、土釘錨固段的超長、土釘總力的大小等方面作了研究，得出了有關土釘的長度與邊坡的坡角、坡高、土體力學參數的關系、土釘總力與庫侖土壓力間的關系等結論；採用大型通用有限元數值分析程序ansys分別對採用土釘支護的一階邊坡、二階邊坡進行分析，重點是研究各排土釘的軸力分佈規律、開挖方式及原始邊坡形態對土釘的軸力的影響、上下階邊坡在土釘軸力方面的相互作用，得出了有關第一排土釘的設計問題、不同類型的土體應適用於特定的開挖方式、原始開挖出的邊坡形態對一些類型坡體的邊坡土釘支護有較大的影響而對另外一些影響不大、二階邊坡臺階寬度的合理確定、二階開挖及支護比一階時具有較多的工程優點等結論；通過土壓力分析對朗肯、庫侖兩種經典土壓力理論的區別與聯系、坡面傾斜及墻背有摩擦時的坡面豎向應力分佈、面板背土壓力的分佈形態作了研究，得出了邊坡支擋土壓力受坡體內部穩定與坡面局部穩定兩個方面的影響、土釘支護面板背土體中卸荷拱的存在對面板受力有利等結論。Power bond graph is used to established the bond graph model of the lifting and dropping of hydraulic pile hammer and state space equation in the paper for hydraulic pile hammer is perplexing nonlinear system. in order to attain the graph that pressure, position, velocity, acceleration vary with time in the course of driving pile simulation procedure solving state space equation is designed on the basis of combining four - order runge - kutta method with predicator - corrector method, dynamic simulation of the hydraulic system is studied in matlab 6. 5. it is convenient to analyse dynamic characteristics of the hydraulic syste m, beneficial to the design and parameter optimization of the hydraulic system. in the final part of the paper, under detailed analysis of the control characteristics for double - acting hydraulic pile hammer with double cylinders, control system based on the programmable logic controllers founded on technology of modern compute is designed
由於液壓打樁錘液壓系統是一個復雜的非線性系統，本文採用功率鍵合圖法建立液壓打樁錘上行、下降的鍵合圖模型和狀態空間方程，通過四階龍格?庫塔法和預估?校正法相結合編制了模擬程序對狀態空間方程求解，在matlab6 . 5中進行液壓系統的動態模擬，獲得液壓打樁錘運動過程中壓力、位移、速度、加速度等隨時間變化的曲線圖。此曲線圖方便了對液壓系統動態特性分析，為液壓系統的設計和參數優化提供了有益的借鑒。最後，在深入分析雙缸雙作用液壓打樁錘控制系統的功能要求后，採用了以現代計算機技術為基礎的新型工業控制裝置? plc可編程式控制制器，設計出了雙缸雙作用液壓打樁錘的電器控制系統。Pressure readings measured at different weather stations after making corrections according to temperature etc. at the same time are plotted on a weather chart. meteorologists then draw lines to show places with the same pressure. these lines are called isobars
氣象人員把各地氣象站同一時間所量度到之氣壓值根據溫度等作出適當的修正後填上天氣圖上，然後將氣壓數值相同的地點用線連接起來，便成為等壓線。Pressure readings measured at different weather stations ( after making corrections according to temperature etc. ) at the same time are plotted on a weather chart. meteorologists then draw lines to show places with the same pressure. these lines are called isobars
氣象人員把各地氣象站同一時間所量度到之氣壓值（根據溫度等作出適當的修正後）填上天氣圖上，然後將氣壓數值相同的地點用線連接起來，便成為等壓線。By selecting the voltage space vector of the voltage across the equivalent converter impedance as the control variables, the steady - state model of hvdc - vsc is developed. on this basis, a steady - state feedback linearization strategy is proposed, then, linear and decoupled control is realized using pi controllers and feedforward compensation
建立了以vsc等效換流阻抗上的基波壓降所對應的電壓空間矢量為控制量時hvdc - vsc的穩態模型，並根據所建立的穩態模型，提出了基於穩態模型的hvdc - vsc反饋線性化控制策略。Building of the first extrusion workshop is expected to be completed before the year end of 2004, followed by installation of the extrusion and surface - finish production lines that the group had ordered from a number of the world s leading suppliers in japan, italy and the us, with an aggregate initial extrusion capacity of about 200, 000 metric tons
預期首個鋁擠壓車間將於二四年底前落成。集團已從日本義大利和美國頂尖技術供應商訂購擠壓及表面處理生產線，將于廠房建成后裝置。此等生產線的初步產能為20萬公噸，目標在二五年中在肇慶工業城內投產。The system was designed in module. and this make the performance of the control system improved prominently and the function of the system can be extended or reduced conveniently
對直線電機的控制採用spwm 、電壓空間矢量控制、 dsc等控制技術，使得控制系統的性能得到了極大的提高。Resistance of the stator is obtained by solving a 1 - d magnetic field diffusion problem. based on the code, curves of fcg ' s inductance, resistance, temperature and its output current, voltage are calculated. secondly, the expanding process for an armature of a helical fcg is studied in depth by a nonlinear, explicit finite - element ( fe ) code
數值計算電感時考慮了螺旋型fcg的三維效應，以及電樞表面鏡像電流的分佈，並通過求解圓柱型導線的一維磁場擴散問題比較精確地得到了fcg定子的電阻，在此基礎上計算了fcg裝置的電感、電阻、輸出電流、電壓和溫度等隨時間的變化。分享友人