直線流 的英文怎麼說

中文拼音 [zhíxiànliú]
直線流 英文
rectilinear current
  • 直 : Ⅰ形容詞1 （成直線的; 硬挺的） straight; stiff 2 （跟地面垂直的; 從上到下的; 從前到后的） erect; v...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 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...
  • 直線 : 1. （不彎曲的線） straight line2. （急劇的） steep; sharp
  1. According to the system technology require, adopting singlechip realize open loop digital control of hdclsm ; using v / f conversion and complex key - control method realize digital setting of system parameter, such as velocity ; using micro - stepping control insure the motor running more smoothly ; adopting debasing speed control method to eliminate the mechanical impact of distance termination effectively ; at the same time, analyzing main power circuits drive circuit and protect circuit of system, completing hardware design and facture and software programming and debugging ; at last, making a whole test in hybrid rotary step motor. the experiment result indicates that this control system reaches the qualities required and run smoothly also

    根據系統技術要求，採用單片機實現了混合式直流直線步進電動機的開環數字控制；利用v f變換和復合鍵控方法實現了系統轉速等參數的數字設定；利用細分控制技術保證了電機運行的平穩性，並進行了波形分析和理論研究；採用單片機軟體降速控制策略解決直線步進電機行程末端的機械沖擊問題；同時對主功率電路、驅動電路和系統保護電路進行了分析，完成了硬體設計、製作和軟體編程、調試，最後在混合式旋轉步進電動機上進行了全面測試。
  2. Second, we discuss the influence of environmental referance potential temperture and thermal wind on mesoscale symmetric instability. we find the expression of disturbance stream function and criterion of symmetric instability by analytical method and conclude that change caused by environmental referance potential temperture with height and thermal wind make critical richardson number and disturbance critical half - wave length of symmetric instability larger, that is to say, they benefit the occurance of symmetric instability. third, we study nonlinear perturbation analysis of mesoscale vertical circulation and evolution equation by means of f - plane. non - hydrostatic balance and filiter model

    第二，討論了環境位溫與熱成風因子對中尺度對稱不穩定的影響。運用解析的方法求出了擾動流函數的表達式和對稱不穩定的判據，發現環境參考位溫隨高度的變化與熱成風因子使得對稱不穩定臨界理查遜數及擾動的臨界半波長都變大，這有利於對稱不穩定的發生。第三，採用f平面、非靜力平衡、濾聲波模式，討論了中尺度垂直環流非線性攝動分析及演變方程。
  3. Current density and electroplating velocity has line relation, but the increscent multiple of electroplating velocity is smaller than that of current density. which indicate that current efficiency decreases with the increase of current density at alcb + lialh4 system. at l - 5a / dm aluminum coating is dense and uniform, especially at 2. 5a / dm

    電流密度與電鍍速度兩者近似成直線關系，但電鍍速度增大的倍數比電流密度增大的倍數要小，說明在alcl _ 3 + lialh _ 4體系中隨著電流密度的提高，電流效率逐漸降低。
  4. A method of beam control for nfz - 10 industrial irradiation linac

    10工業輻照電子直線加速器束流控制方法
  5. Signal processing system for beam position monitor at hls 200 mev linac

    直線加速器束流位置測量的信號處理系統
  6. Studies on the optimum beam orbit correction for high energy electron linacs

    高能電子直線加速器束流軌道校正的優化研究
  7. We can use the mm5 model in definite time, definite area weather forecasting. we conclude that : : the moving route of this necw in its developing progress was direct - south along latitude, the cold air is rough, and just this made the rough vertical velocity ; the necw southern moving and conflicting with the west pacification sub - tropical high makes rough jet steam. the plenty south - west warm and wet air made by the jet stream gave the rainstorm demanded vapor ;. the rough vertical velocity by jet stream is a main reason in this rainstorm ; the mm5 model uses four - direction analysis data as its input, this avoids some errors occurred in observe and transfer, thus made the result more useful

    綜合分析認為： （ 1 ） 、這次冷渦在其發生發展過程中，其移動路徑是沿經圈直線南壓，攜帶的冷空氣勢力較強，形成槽后較強的垂直運動； （ 2 ） 、西太平洋副熱帶高壓偏北位置與東北冷渦南壓形成的急流軸，把源源不斷的西南暖濕氣流輸送到遼西地區，也就是急流軸的左前方位置，為這次暴雨的產生提供了充足的水汽來源； （ 3 ） 、低空急流不但為暴雨輸送水汽，其造成的較強的垂直環流也是產生強降水的一個主要原因； （ 4 ） 、 mm5模式以四維同化資料作為初始場，最大限度地避免了觀測誤差可能造成的積分不穩定，提高了模擬結果的參考價值。
  8. An air straightener should be placed down stream from propeller to counteract circular air motion in the tube.

    一種氣體直線流動器應該使氣流從推進器的反作用中使氣體的活動在管內循環。
  9. Fig. 20 - 1. team crossing. direction of flow is parallel to the line of the waders

    最強的要站在最上游的位置，隊伍的直線要和水流平行。
  10. The thermal visualizations of jet impingement cooling with single or double row holes inside semi - enclosed channel are measured by using infrared camera and then the impingement cooling heat transfer coefficients are deduced. the effects of flow and geometry parameters on convective heat coefficients are obtained. the results show that : for a single row normal impingement, the impingement cooling effectiveness is enhanced with the increase of impinging reynolds number or the decrease of hole space to diameter ratio, and the best effectiveness is achieved under the jet - to - surface spacing equals to 2 ; when the jet is oblique to the confined wall, the cooling effectiveness is weaken especially under the jet - to - surface spacing ratio is greater than 2 ; for double rows normal impingement cooling, the cooling effectiveness of rear row jet is weaker than the front row under lower impinging reynolds number or bigger jet - to - surface spacing

    對于單排垂直射流，沖擊冷卻效果隨射流雷諾數的增加、孔間距與直徑比的減小而得到提高，沖擊間距比為2時換熱效果最好;沖擊孔中心線向通道封閉一側傾斜后，射流沖擊冷卻的范圍變窄，當沖擊間距比大於2時駐點區的對流換熱能力明顯降低;對于雙排沖擊射流，孔排間距與直徑比的增加使沖擊冷卻范圍變大，但在兩排孔之間區域的對流換熱系數有所下降;在較小的沖擊射流雷諾數和較大的沖擊間距比下，後排射流的沖擊換熱效果要遜於前排射流。
  11. In this paper, we have studied the feasibility for the bpm of to be button electrode was used in the lia and the simulating has done for the use by pspice / orcad

    本文研究了鈕扣電極束位置探測器應用於強流直線感應加速器（ lia ）的可行性，並用pspice orcad電路模擬模擬軟體進行了模擬計算。
  12. The button electrode is one that widely used in high energy rf accelerators, such as storage ring, and the bpm made of button electrodes has many merits like high accuracy, high resolution, resisting magnetic field, simple machinery, without magnetic core and low cost, etc. so we want to use the button electrode as the bpm in high current accelerators like the lia

    鈕扣電極束位置探測器是一種廣泛應用於射頻加速器儲存環等高能弱流加速器的一種束位置測量裝置，它具有測量精度高、解析度高、不受磁場干擾、機械結構簡單、無磁芯、造價低廉等特點。只是，至今未見有關這種束位置探測器在強流加速器（如，直線感應加速器）上應用的報導，如能將鈕扣電極束位置探測器應用於lia ，將是一件很有意義的事情。
  13. The thesis roots in the item supported by " fifteen " aviation funds, - new type aeronautic linear dc motor ( ldcm ), study its classes characteristics and work principle, mainly researches the drive and control technique of aeronautic linear dc step motor ( ldcsm ) using in emergency discharging oil valve on airplane

    本文源於「十五」航空支撐基金項目-新型航空用直線直流電動機。論文研究了直線直流電動機的分類、特點及其工作原理，重點針對飛機應急放油閥用航空直線直流步進電動機驅動控制技術進行了研究。
  14. Testing of semiconductor materials ; measurement of the resistivity of silicon or germanium single crystals by means of the four probe direct current method with collinear array

    半導體材料的試驗.用探針直線排列的四探針直流法測
  15. Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively

    本文對大圓環直線感應電機進行了深入細致研究，內容包括： （ 1 ）本文採用有限長行波面電流作用於有限長鐵芯上的模型，引用了氣隙磁場一維解，研究了單層繞組磁場，奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較，簡單介紹了二維解； （ 2 ）用有限元軟體ansoft對大圓環直線感應電機空載氣隙磁場進行了靜態分析，並分析了結果； （ 3 ）用軟體進行了額定電壓下的瞬態分析，得到了轉矩，位移，轉速隨時間變化曲線圖，利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較，採用等效電路法計算了堵轉時的最大電磁力並做實驗進行了驗證，由實驗測得了三相電流波形，並與計算結果進行了比較，對其不對稱性進行了定性分析。
  16. Drawing capstans are arranged in straight - line, the metering capstan is driven by separate dc motor. drawing dies can be quickly changed

    鼓輪直線式排列，定速輪單獨直流電機驅動，可實現快速換模功能。
  17. Drop line vertically down and read flow rate from bottom of chart

    沿著垂直線向下，從圖表底部讀出流量。
  18. Moreover, the aeronautic linear dc motor control system not only can instead the drive motor of emergency discharging - oil valve, but also can be used in some low power electromotion machine making linear locomotion. the motor owns extensive application foreground preferably

    該直線直流步進電動機驅動控制系統的研製，可替代現有飛機應急放油閥有刷驅動電機，也可用於小功率直線運動機構中，具有較好的應用前景。
  19. The product is suitable for double straight line smoothing of grinding flat glass. coarse grinding, fine grinding, and polishing can be done at one time. adopt plc control system, which sets processing parameters via interface, and finishes processing at one time, ti has stable bottom structureprecise and smooth transmission system, the transmission belt drive adopts strong power and tran - sfrequency motor to control speed, constant power, constant rule, output and advanced equipment to control, completed product has high polishing level, which is an ideal option assistant processed equipment of processing delicacy glass and furniture glass factory

    本產品適用於磨削平板玻璃是雙直線平邊，粗磨精磨拋光一次完成採用plc控制系統通過界面設定加工參數次完成加工，具有穩重扎實的底座結構，精確流暢的傳動系繞，傳送皮帶驅動採用功率變頻電機調速控制，恆功率恆扭矩輸出和高配置的控製成品拋光亮度高是加工精品玻璃和傢具玻璃廠家使用的最佳輔助加工設備。
  20. Loss of head is minimized by the balanced disc and its " aerofoil " design. streamlined body without pockets contributes to straight - through flow

    通過平衡閥瓣及其「翼型」結構，將水頭損失（或位差損失）降到最小程度。流線型閥體，不再需要凹穴來幫助流體直線流通。
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