differential flow 中文意思是什麼

differential flow 解釋
分層流動
  • differential : adj 1 差別的，區別的；特定的。2 【數學】微分的。3 【物、機】差動的，差速的，差示的。n 1 （鐵路不...
  • flow : vi 1 流，流動。2 （血液等）流通，循環。3 流過；川流不息；（時間）飛逝；（言語等）流暢。4 （衣服、...
  1. Considering the overtaking flow, this paper built the continuum equation of mixed traffic flow, set up the kinematics differential equation by means of differential calculus

    摘要引入超車換道流量，建立了混合交通流的連續性方程；通過對交通流參數的微分變換，建立了混合交通流的運動微分方程。
  2. Measurement precision contribute to improving the security class and economic of boiler running and automatic level of whole plant. the smart measurement instrument of the boiler ’ s air flow designed in the thesis and the instrument can make the degree of accuracy get to. firstly, the thesis build the “ velocity - area ” method which is on basis of “ log - tchebycheff ” on the analyzing of basic measure method of boiler ’ s air flow. secondly, model86 averaging pitot tube was selected the right model of flow transducer which can pickoff the differential pressure and static pressure. modelc264 which made in setra system corp. u. s. a was selected as ultra low differential pressure transmitter. a good flow of boiler ’ s air was calculated by offsetting pressure and temperature. finally, numeroscope was designed with z80cpu and other chips

    精確的監測有助於提高鍋爐燃燒的安全型、經濟性，也有助於提高電廠的整體自動化水平。本文設計的智能化鍋爐風量測量裝置能夠實現對鍋爐送風的精確測量，精度可達。本文首先研究鍋爐送風矩形大管道測量理論，提出在流來流量測量測點布置基於「對數-切比雪夫」法的速度-面積法。
  3. During the period of measurement, the transduction circuits transform the differential pressures, the absolute pressures and the temperatures received by the sensors into the voltage signals, and then, the voltage signals are transformed into digital signals by the a / d convertor. the mcu processes these digital signals and calculates the cumulation of the flow. finally the totalizers contact with the pc by rs - 485 bus to form a distributed measuring network

    在測量過程中，系統以流量計節流所獲得的差壓信號作為主信號、絕壓和溫度信號作為補償信號進行流量積算，這三種信號分別由相應傳感器感知后，經各自的物理信號測量電路轉換為電信號，再由a / d轉換模塊轉變為數字量，交微控制器進行處理、積算。
  4. Abstract : the distribution of cooling air which is in the grille - brick of the inner combustion hot air stove has been simulated with three dimension turbulent mathematical model so as to find a method which is used to improve the distribution of cooling air in hot air stove. the influence of differential horizontal plates on the distribution of cooling air is discussed. the results show that original big circle round field of flow in the pillar - cavity is changed into full one - way field of flow and edges gas flow, at the same time, is increased by horizontal plates. there is a different function with horizontal plates and vertical plates. to make the uniform distribution of cooling air in the hot air stove, it is necessary that horizontal plates and vertical plates are used in a combined way

    文摘:應用紊流三維數學模型模擬內燃式熱風爐內冷風在格子磚柱中的分佈，尋求改善其分佈的途徑.討論了加設不同布置的水平導流板對氣流分佈的影響.模擬結果表明，在支柱空腔內加設水平導流板改變了原有大迴旋流場，使迴旋流變成大面積的單向流.通過在支柱空腔內加設水平導流板可以發展邊緣氣流，這恰好與加設豎直導流板的作用相反，水平導流板和豎直導流板的結合使用有望實現冷風在格子磚柱中的均勻分佈
  5. They generally arise when a continuous pressure differential allows blood to flow constantly from a high to a low pressure area, as may occur in a variety of congenital defects, most commonly patent ductus arteriosus, anomalous origin of the left coronary artery, or coronary arteriovenous fistula

    一般出現在持續壓力差使血液從一高壓區不斷流向低壓區時，也可以出現在一些有先天性缺陷的病，最常見的有動脈導管未閉、左冠狀動脈起端異常，或冠狀靜脈動脈瘺。
  6. Adopted numerical value integral method into the explain of the basic heat - conduct differential equation based the stabilization flow. get temperature changes rule of the cold - blowing and hot - blowing period of the cold - cumulating and dry - able tin

    採用數值積分法對基於穩定流的基本傳熱微分方程組進行求解，進一步了解了影響蓄冷器效率的主要因素。
  7. Adjust balancing valve until pressure differential gauge reads pressure drop required for desired flow rate gpm

    調整平衡閥直到壓差表讀出壓降符合所要求的流量（加侖/分鐘）為止。
  8. Measurement of fluid flow by means of pressure differential devices - condensation chambers

    用壓差裝置測量流體流量.冷凝室
  9. Measurement of fluid flow by means of pressure differential devices - threaded pipe end and accessories

    用壓差裝置測量流體流量.螺紋管端和附件
  10. Measurement of fluid flow by means of pressure differential devices inserted in circular cross - section conduits running full - venturi tubes

    用插入圓截面管道中的壓差裝置測量流體流量.文杜利管
  11. Measurement of fluid flow by means of pressure differential devices inserted in circular cross - section conduits running full - orifice plates

    用插入圓截面管道中的壓差裝置測量流體流量.節流孔板
  12. Measurement of fluid flow in closed conduits - pressure differential devices - guide to the use of devices specified in sections 1. 1 and 1. 2

    封閉管道內液體流量測量.第1部分:壓差器件.第4節:第1和2節規定器件使用指南
  13. Measurement of fluid flow by means of pressure differential devices inserted in circular cross - section conduits running full - nozzles and venturi nozzles

    用插入圓截面管道中的壓差裝置測量流體流量.噴嘴和文杜利噴嘴
  14. Measurement of fluid flow by means of pressure differential devices inserted in circular cross - section conduits running full - part 2 : orifice plates

    用插入滿載的圓截面管道中的壓差裝置測量流體流量.第2部分:節流孔板
  15. Measurement of fluid flow by means of pressure differential devices inserted in circular cross - section conduits running full - general principles and requirements

    用插入圓截面管道中的壓差裝置測量流體流量.一般原理和要求
  16. Venturi measurement of fluid flow by means of pressure differential devices inserted in circular cross - section conduits running full - part 4 : venturi tubes

    用插入滿載的圓截面管道中的壓差裝置測量流體流量.第4部分:文杜利
  17. Measurement of fluid flow by means of pressure differential devices - guidelines for specification of nozzles and orifice plates beyond the scope of iso 5167 - 1

    用壓差裝置測量流體流量. iso 5167 - 1規定范圍之外的噴嘴和節流孔板規范指南
  18. The interior temperature distribution and ablation model of projectile wing is established from general transmitting heat differential equation ; at the same time, the heat flow density and pressure distribution model of projectile wing is also established

    從一般形式的導熱微分方程出發，逐步建立了彈翼內部溫度分佈和燒蝕的數學計算模型；與此同時，建立了彈翼表面的熱流密度和壓力分佈的數學模型。
  19. According to the control rod hydraulic drive mechanism ( crhdm ) and the characteristics of its hydraulic cylinder seal structure, the leaking ways of the hydraulic cylinder piston ring seal were analysed, its theoretical calculation model was built and its flow resistance formula based on the calculation model of differential pressure at the hydraulic cylinder piston ring seal was deduced

    摘要根據控制棒水壓驅動機構水壓缸活塞環密封結構的特點，分析了水壓缸活塞環的泄漏途徑，建立了活塞環密封泄漏流阻的理論計算模型，並結合水壓缸活塞環密封處的壓差計算模型，推導出水壓缸密封結構的流阻計算公式。
  20. Hydraulic fluid power - valves - determination of pressure differential flow characteristics

    液壓流體動力.閥門.壓差流體特性的測定
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