線轉向時間 的英文怎麼說

中文拼音 [xiànzhuǎnxiàngshíjiān]
線轉向時間 英文
line turnaround
  • 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...
  • 轉 : 轉構詞成分。
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 轉向 : 轉向turn; turn round [around]; swing; sway; change direction; change one's political position
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  1. The welding technology of francis turbine runners is optimized from the view of subsection welding and local heating by numerical simulation. the result shows that welding residual tensile stress appears in the weld and its area nearby, and peak stress appears in the dangerous area of blades after practising quondam welding technology ; welding residual tensile peak stress in the dangerous area of blades can be decreased by welding both ends earlier and then welding middle section later during subsection welding, and decreasing effect on welding residual stress of the subsection welding is related to the weld length of blade outlets and welding direction of each subsection ; decreasing effect on residual stress of the local heating is direct proportional to heating time, heating temperature, heating area, and inversely proportional to cooling area, and welding residual tensile peak stress in the dangerous area is decreasing trend earlier, and then increasing trend later with heated location increased

    本文利用數值模擬手段對轉輪的焊接工藝從分段焊和局部加熱兩個方面進行了優化，結果表明:採用普通工藝焊接時，葉片焊后殘余拉應力出現在焊縫及其附近區域，並且在葉片出水邊的熔合線附近（危險區域）出現了峰值;在採用優化的分段焊時，先焊兩端后焊中間的方法可以降低葉片危險區域的焊接殘余拉應力峰值，降低效果與葉片出水邊焊段長度、焊縫各段的焊接方向有關;局部加熱法降低轉輪危險區域殘余應力的效果主要與加熱時間、加熱溫度以及加熱面積成正比，與冷卻面積成反比，並且危險區域的殘余應力隨加熱區域的增大呈先降低后升高的趨勢。
  2. First, the nonlinear ls problem without constraint is converted to that subjected to inequality constraints by putting constraints on the do as of the received signals and toas of the first arrived signal with geometrically based single - bounce ( gbsb ) statistical channel model and cost - 207 model. then, a penalty function is used in the estimation of ms position

    首先，用基於幾何結構的單次反射圓模型和cost - 207模型，對期望定位用戶的各條多徑信號的波達方向和最先到達多徑信號的時間進行約束，將傳統的解無約束的非線性最小二乘定位問題或近似線性最小二乘定位問題轉化為解不等式約束的非線性最小二乘定位問題；然後，用內點罰函數法估計移動臺的位置。
  3. In the new environments of china ' s entry into wto, on one hand, as all enterprises are facing different competitive environments and the competition becomes more severe, it objectively requires all enterprises to shorten market response time and make themselves to manufacture according to po ; on the other hand, along with the innovation of new technologies of changan auto and the speedup of new products development, the increase of production scale, the company has the internal demand to establish advanced computer system to enhance the production management level and the site cannibalization & control capabilities, to convert itself to coordinated production and provide flexible technological guarantee for the mixed vehicle production line in the aspects of materiel coordination & product line management, when it builds new product line or rebuilds old product line

    在加入wto的新形勢下，一方面由於企業所面臨的競爭環境發生變化和程度進一步加劇，在客觀上要求企業縮短市場反映時間，盡量實現按定單組織生產；另一方面隨著長安汽車技術創新和開發新產品的加快，其生產規模的進一步擴大，在公司內部存在要求在建設新生產線或者改造舊生產線時，建立先進的計算機系統，提高生產線的生產管理水平，提高車間的現場調度和控制能力，向協同生產轉變，為多品種的汽車混線生產在物料投放與生產線管理上提供柔性的技術保證。
  4. According to the frndamental and the steps of this method, we cans use the linear regress filter method to make the simulation of the wind load and then we can educe the curve of the time - process wind velocity. after that step, we can get the chart of the dynamic wind load which we can deliver the crosswind into the particle wind load and put them on the corresponding cell nodes. then we can do the analysis of the dynamical wind load through the time - process analysis to get the max value of the displacement

    根據線性回歸濾波器法的基本原理和步驟，藉助相關軟體進行風荷載的人工模擬並得出風速時程曲線，進而轉化為風動力譜，由此將橫風向風力表達成節點風荷載作用於相應的單元節點上，按時程分析法對該空間桁架體系進行風荷載的動力分析，求出結構在進行風動力荷載分析時，結構相應節點對應的最值位移值。
  5. Design engineers now selecting pmbldc motors over conventional dc or induction motor drives for the following reasons : 1 ) the absence of brushes results in an essentially maintenance free operation and eliminates the undesirable effects of commutation such as sparks, brush - loss, radio - frequency interference, etc. 2 ) the low inertia of the rotor enhances the quality of the mechanical response of the motor, shortening the acceleration and deceleration time. 3 ) utilizing rare - earth permanent magnet materials with high coercive force results in substantially higher efficiency than their counterpart with brushes of the same size. 4 ) because of the absence of commutation segments, the stator construction is simple

    現在的工程師們更為青睞永磁無刷直流電動機是因為以下幾點原因： （ 1 ）去除了電刷的永磁無刷直流電動機徹底地免除了維護而且消除了我們不希望的由於換向帶來的火花、電刷損耗以及無線電干擾等等； （ 2 ）低轉動慣量的轉子提高了電機機械響應的質量，從而縮短了電機加速和減速的時間； （ 3 ）高矯頑力稀土永磁材料的使用使得同樣尺寸的永磁無刷直流電動機比傳統的直流電動機效率高； （ 4 ）由於沒有機械換向部分定子的結構簡單了。
  6. With compensation of signal ’ s time delay from different radiating element by phase shifters, phased - array antenna can control array beam easily. because there are no mechanical devices for rotating beam, the phased - array antenna system can scan everywhere in beam covered areas in millisecand by stepping the phase shifters. it improves the tracking velocity of antenna towards the object, and becomes the development trends of weapon system antennas

    相控陣天線利用移相器補償信號到達輻射單元時間的差異，從而控制波束方向;天線沒有機械旋轉問題，只需改變移相器的設定值，波束便可以在毫秒級內掃描其覆蓋空域內的任何地方，提高了天線對目標的跟蹤速度，是目前武器系統天線的發展方向。
  7. The linear time perturbation theory is used in this paper, the effects of rotary flow, axial flow and both of them to the arc stability are discussed respectively. the corresponding equations and the boundary conditions are deduced

    本文採用與時間有關的線性微擾理論，分別討論了旋轉氣流、縱向氣流的作用，以及它們共同的作用下電弧螺旋不穩定性的特徵。
  8. The function of stone artistic splice complete through to established basic design or source material warehouse with the help of others graph process software. besides author come up with a new program or machine method in accordance with stagger in the thicknes and vertical length at the stone sticking execution, i. e ensure the accuracy in measurement to approach subsection by space spiral line, the data used directly by numerical control machine. finally machined the stone become a spiral line columned surface arc slab

    此外，針對旋轉樓梯扶手石材貼片施工時所出現的厚度和垂直方向易產生較大錯邊的問題，提出了一種新的建模方案和加工措施，即在保證測量精度的基礎上，分段以空間螺旋線逼近，經過計算機處理后的參數直接可供數控加工使用，最後把石材貼片加工成螺旋線型的柱面弧形扳。
  9. Bases on living mode in the digital era, with digital technology " s application in architecture field and its effects on traditional architecture system as main line, through analyzing and comparing the relation between virtual space and physical space, this article discusses the transformation of architecture concept from physical space to virtual space and its developing trend. it also discusses some of the features of virtual space

    本文以人們在數字時代的生存模式為基點，以數字技術在建築領域中的應用和對傳統的建築體系的影響為主線，通過分析和比較虛擬空間和實體空間之間的關系，討論了建築概念由實體空間向虛擬空間的轉變和發展趨勢，同時也就虛擬空間的某些特性作了一定的論述。
  10. It is necessary to carry on abnormal design, that is to disposal transfer floor structure where vertical structure changes. upside smaller room and downside larger room to stagger axes of high - rising buildings. or upside shear - wall and downside frame to meet difference of structure systems

    當高層建築下部豎向結構體系或形式與上部樓層差異較大，或者下部樓層豎向結構軸線距離擴大或上、下部結構軸線錯位時，就必須在結構改變的樓層布置水平轉換層結構，進行「反常規設計」 ，將上部布置小空間，下部布置大空間；上部布置剛度大的剪力墻，下部布置剛度小的框架柱，以滿足建築功能的要求。
  11. Specific issues examined are : compensation for the variation of the stator resistance, the offset error of the dc bus voltage, the voltage error generated by the forward voltage drop the dead time of the switches, improvement of the steady state performance, and the speed sensorless control for the pmsm dtc drive system are of major concern in this thesis

    定子電阻變化，直流母線電壓漂移，開關器件反向相電壓降、逆變器死區時間引起的電壓誤差的補償，提高系統穩態運行性能以及永磁同步電機直接轉矩控制的無速度傳感器運行方案等問題都是本文研究的重點。轉矩的快速響應是直接轉矩控制演算法的一個卓越的性能。
  12. 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。
  13. Then, the thesis presents a schema based two - level associated model, which dramatically reduces the number of the candidate subscriptions. in addition, an incremental subscription matching algorithm is proposed to efficiently matching events for millions subscriptions. furthermore, since indexing is very important to the system, the indexing scheme for xml data is defined based on the containment relationship, which can be more efficient to deal with relative paths than previous methods

    另外，由於在意向匹配過程中涉及大量索引問題，為此針對先前研究在處理基於相對路徑的意向表示上存在的問題，本文提出了一種基於相容關系的索引模式，利用系統抽象數據拓撲結構進行相對路徑到絕對路徑的轉換，通過基於相容關系的數字方式編碼，能夠快速確定對應結點的依賴關系，同時提出了新的路徑轉換演算法，將時間復雜度由過去的平方時間變為線性。
  14. A widely used method for checking real - time systems is, according to the real - time property to be checked, to use a proper bi - simulation equivalence relation to convert the infinite - timed state space to a finite equivalence class space. the algorithm needs only to explore the finite space to get a correct answer. in most cases, exhaustive exploration is very difficult because the equivalence class space increases explosively when the scale of the system increases. in this paper, an equivalence relation is introduced to check whether a concurrent system, which is composed of a finite set of real - time automata, satisfies a linear duration property. to avoid exhaustive exploration, this paper also introduces a compatibility relation between timed states ( configurations ). based on these two relations, an algorithm is proposed to check whether a real - time automaton network satisfies a linear duration property. the cases study shows that under some conditions this algorithm has better efficiency than the tools in the literature

    一個被廣泛用於驗證實時系統的方法是根據被驗證的實時性質，使用適當的雙向模擬等價關系使無限的狀態空間轉化為有限的狀態等價類空間.演算法只需要在這個有限的等價類空間里搜索就可以得到正確答案.但是，這個等價類空間的規模一般隨著系統規模的增大而產生爆炸性的增長，以至於在很多情況下，窮盡搜索這個空間是不現實的.該文引入了一個等價關系來驗證一個由多個實時自動機通過共享變量組成的並發系統是否滿足一個線性時段特性.同時，還引入了格局之間的兼容關系來避免對狀態等價類空間的窮盡搜索.基於這兩個關系，文章提出了一個演算法來驗證是否一個實時自動機網滿足一個線性時段特性.實例研究顯示，此演算法在某些情況下比其他一些工具有更好的時間和空間效率
  15. In this paper, we study a new method of automatic detection of target course - altering maneuvers based on a linear measurable function of bearings varying with time when the target travels on a straight line at a constant speed

    摘要根據觀測器目標保持勻速直線運動時目標方位隨時間線性變化的一種可量測函數，研究了一種檢測目標轉向機動的新方法。
  16. Because the method uses the linear measurable function of bearings varying with time, so it is more effective than the normal method which based on bearings of the target directly, and at the same time it can overcome the limits when use the normal method in special situation

    由於該方法將目標方位隨時間變化的非線性關系轉換到另一空間的線性關系，這使得檢測更加有效、直觀，並且能夠克服直接採用方位序列檢測目標轉向機動在特殊情況下失效的限制。
  17. Following the architecture description of rtps middleware, two critical implementation issues are carried out : the first, object - oriented multi - threaded architecture. to avoid negative effect brought by the block, and to improve the realtime responsive ability of the system, we decouple the event processing from its transportation ; the second, pooled memory allocationjn order to decrease the time - and - space overhead due to dynamic memory allocation, thus to improve the dynamic performance of the realtime publish - subscribe system and the predictability of runtime end - to - end qos, we adopt the pooled allocation to change many dynamic system calls into one static system call and several user interface calls in fixed time

    通過將事件的輸送與處理解耦以避免阻塞所帶來的影響、改善系統的實時響應能力，通過面向對象的多線程並發以支持異步事件的實時並發處理並獲得系統結構上的靈活性；其二，池式內存分配。通過內存池分配方式將客戶的大量動態系統調用轉化為一次靜態系統調用和數次固定時間的用戶介面調用以減少動態內存分配的時空開銷，從而改善實時發布-訂閱系統的動態性能與提高其運行時端對端服務質量的（ end - to - endqos ）可預測性。
  18. Consider three mutually perpendicular coordinate lines ( the -, -, and - axes ) with their zero point at a common point, called the origin. the three axes form the right - handed system, that is, if the fingers of the right hand are curled so that they curve form the positive - axes toward the positive - axes, the thumb points in the direction of the positive - axes

    空間中三條相互垂直的坐標線，它們的零點相互重合，稱為原點，記為.坐標軸遵循右手法則，即以右手握住-軸，當右手的四個手指從正向-軸以角度轉向-軸時，大拇指的指向就是-軸的正向
  19. Well, by means of these lines, which are in accordance with the double motion of the earth, and the ellipse it describes round the sun, i am enabled to ascertain the precise hour with more minuteness than if i possessed a watch ; for that might be broken or deranged in its movements, while the sun and earth never vary in their appointed paths.

    神甫說， 「我就是根據它觀察劃在墻上的這些線條來推測時間的。這些線條是根據地球的自轉和它繞著太陽公轉的道理劃成的，只要向它一看，我就可以斷定是什麼時間，比表還準確，因為表是會壞的，而且有時走快了，有時走慢了，但太陽和地球都決不會出亂子。 」
  20. The whole - body gamma knife system is a kind of non - invasive medical instrument by using co - 60 as the gamma ray source. according to geometrically focusing theory, the gamma knife system can precisely focus in spirals 30 beams of gamma rays from different directions to a target through a collimator. by the collimator s direction, the predetermined lesion will be under radiation in heavy dose and subsequently be destroyed completely

    體部伽瑪刀是利用能產生伽瑪射線的鈷60作為放射源，根據幾何聚焦原理，將30束伽瑪射線從不同方向和位置通過準直后經一個固定的軸旋轉聚焦到焦點，形成品質優良的劑量區，將腫瘤組織置於該高劑量區中，即可在預定時間內將病變組織摧毀，體表和焦點以外的正常組織僅受到瞬時照射而基本上不受損傷。
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