pulsation 中文意思是什麼

pulsation 解釋
n. 名詞 1. 脈搏，悸動；跳動，顫動；【電學】脈動。
2. 【羅馬法】（不痛程度的）毆打。

  1. Fluid noise mainly comes from out put pulsation of rate of flow, the main reason of out put pulsation of rate of flow is the instant high pressure return flow that obturation cubage produced when the big round curve pressure transition. the v trough on the port plate can reduce the fluid noise. in this paper, the author based on the acting of dam a river and condensability of liquid and used matlab language as tool to calculate the v trough on the original port plate and drew out the p - t diagrammatic curve and analyzed its shortcoming and improved the design of original v trough and got that the best size of its angle was 12. 3 and its length was 5mm and the cross section was an equilateral triangle

    流體噪聲主要來源於輸出流量脈動，造成輸出流量脈動的主要原因是閉死容積在大圓弧段壓力切換時產生的瞬時高壓迴流，在配流盤上開設v型尖槽可降低因高壓迴流而引起的流體噪聲，本文以截流作用和液體的可壓縮性為理論依據，以matlab語言為工具，對原配流盤上的v型尖槽進行了理論計算，繪制出p - t圖線，分析了它的不足，並對原有v型尖槽進行了優化設計，得出了v型尖槽的最佳幾何尺寸：配流盤平面上的v型尖槽的兩邊的夾角為12 . 3 ，槽長5mm ，槽的橫截面為等邊三角形。
  2. As an example, the ratio between each group of two consecutive numbers follows the human heartbeat pulsation : sudden increase, a small dip, a rise again, and then even progression, until the next heartbeat

    例如，每兩個相鄰數組間的比遵循人類心臟跳動：突然加大，少許傾斜，再次上升，接著平衡行進，直到下一個心跳。
  3. Propagation characteristics of the pc3 frequency range pulsation in the cusp latitudes

    3頻段脈動的傳播特性
  4. The relationship between capacitance and corrosion conditions in the enlargement of tunnels justifies the latter competition mechanism the varied etching conditions were implemented by enhancing the passivating characteristics and viscosity, changing the a13 + concentration, temperature of etchants and current pulsation. passivating acid in the etchant is conducive to the instant passivation of exposed areas on the foil surface, and hence sustains the balance of competition between aggressive anions and passivators, providing pit nucleatiori sites continuously

    通過侵蝕液中添加草酸、硫酸、乙二醇，改變侵蝕液al ~ （ 3 + ）濃度和電流紋波等方法，研究了不同的侵蝕條件對隧道孔形貌和比容的影響，結果表明：草酸和硫酸既保護了鋁箔表面又促進了隧道孔孔壁的迅速鈍化，增加發孔密度。
  5. The substantial alteration by 160 % in the range of the blood flow pulsation can negatively affect the function and plasticity of the blood circulatory system and may potentially lead to the development of hypertonic or hypotonic symptoms in the human body

    在血流脈動范圍內，透過160 %相當可觀的變化，可能對血循環系統的功能及塑性具負作用影響，並且可能潛藏在人類身體導致張力亢進或低壓癥狀的發展。
  6. At low frequencies, such as 10 per sec., pulsation is sensed rather than vibration.

    在低頻率（譬如每秒十次）時，所感覺到的是脈沖而非振動。
  7. The rubber joint between stepper motor and transfer pump can minish pulsation caused by the shake of the motor when transfusing

    步進電機與輸液泵之間通過橡膠連接頭實現連接，可緩解輸液時由步進電機震動引起的脈動。
  8. Palpitation irregular, rapid beating or pulsation of the heart

    心悸，快速的心跳或心臟的博動。
  9. Gas pulsation of piston pressor

    活賽壓機氣流脈動
  10. With technical guidance from professionals, they operate in shifts round the clock to keep tabs on the earth's pulsation.

    在專業人員的技術指導下，他們日夜輪班工作，監視著地殼的脈動。
  11. The air - bag type sequential external counter - pulsation device

    氣囊式體外反搏裝置
  12. The alr - bag type sequential external counter - pulsation device

    氣囊式體外反搏裝置
  13. Salila is also conducting a pulsation workshop in hong kong

    如有需要，可另加
  14. It offers the true pulsation of natural growth

    它提供了自然成長的真正跳動。
  15. In your reviewing the technical value of the quadruplex pump please consider that this unit is equipped with four pulsation dampeners on the discharge side allowing the pump to achieve a uniformity at least comparable with that of a triplex pump

    當考慮四泵頭的泵的技術價值時，請注意到這一裝置在出口側裝有四個脈沖緩沖器，這就可以使泵達到平穩的操作，至少是可以同三泵頭的泵相比。
  16. Aim at to turn a dense oil pump in the movement the metal bellow expansion joint and buffer tank was installed in the dense oil pump export because of the violent vibration and noise cause by the discharge and the pressure pulsation, the result show lowered the vibration and noise availably was obvious

    摘要針對轉子式稠油泵在運行中因流量和壓力脈動所引起的劇烈震動和噪聲，在稠油泵出口安裝金屬伸縮節和緩沖罐，有效地降低了震動和噪聲。
  17. In the hydraulic transmission systems, after the valve is suddenly open and shut off, there will be a fluid transient in the form of pressure pulsation propagating along the pipeline

    液壓系統中，閥門的快速開啟或關閉會在管路中發生壓力瞬態脈動過程。
  18. The study has completed the design of two - phase inverter and made up of the two - phase inverter - motor system for experimental use it is a variable frequency adjustable speed system with a open - loop control of rotational speed, which consists of voltage - controlled oscillator circulating assign device inverter circuit and two - phase induction motor a accurate mathematical model is set based on the whole system, and simulator program of dynamic and steady condition is established, which is used to calculate the dynamic and steady performance by kron and symmetrical coordinate converter by simulator calculation and experimental research with specific parameter of the system, a comparison is made between predicted and experimental characteristics, experimental measurements are shown to compare closely with corresponding theoretical result it is compared with some variable frequency adjus table speed system comprising inverter and single - phase induction motor from the system efficiency torque pulsation and the effect of two - phase inverter capacitance based on the conclusion, harmonic cancellation pulse width modulation control of a two - phase inverter - fed induction - motor drive system is researched, which cancelled the low harmonic and improve the system performance

    通過對電機的kron變換和對稱分量變換，建立了系統較精確的數學模型，編制了系統動態及穩態運行的模擬計算程序分別計算系統的動態和穩態性能。通過對系統的具體參數進行了模擬運算和實驗研究，實驗和模擬結果進行比較，說明實驗和理論較為一致，並從系統效率、轉矩脈動及兩相逆變器電容的影響等方面與各種逆變器和單相異步電動機組成的變頻調速系統加以比較。在此基礎上，對兩相逆變器供電-異步電動機系統使用諧波抑制pwm控制進行了研究，由於減少了低次諧波，改善了系統性能。
  19. What is mainly discussed in this dissertation is as follows : the fault mechanism and vibration frequency feature of hydroelectric vibration are analyzed, induced and reorganized. the select and placement of detecting positions of parameters such as vibration, swing and pressure pulsation are researched, and the corresponding sensors are selected to monitor

    本文主要進行了以下工作：分析、歸納和整理了水電機組振動的故障機理和振動頻率特徵，對機組的振動、擺度和壓力脈動測點進行了選擇和布置，並選用相應傳感器進行監測。
  20. Iabc intra - aortic ballon counter - pulsation

    主動脈內球囊反搏裝置
分享友人
分享到 Line

分享到臉書