air pressure difference 中文意思是什麼

air pressure difference 解釋
風壓差
  • air : n 1 空氣，大氣。2 天空，空中。3 微風，和風。4 態度，樣子，風度，氣派；〈pl 〉高傲的架子。5 傳播，...
  • pressure : n 1 壓；按；擠；榨。2 【物理學】壓力，壓強；大氣壓力；電壓。3 精神壓力，政治[經濟、輿論等]壓力。4...
  • difference : n. 1. 差異，差別。2. 不和，爭論。3. 【數學】差，差額。4. 【邏輯學】特殊性。vt. 〈罕用語〉區別，使有差別。
  1. By linear regression analyzing of the concentration of plankton microbe and settling microbe, we get the relationship between plankton microbe, settling microbe and air exchange rate, which reflect the randomness of bacterium in dynamic state. controlling the pressure difference effectively by adjusting forced draught blower and exhaust blower. comparing the jet fluid of different supply - air outlet, the diffuse pore plate is suit to assembling cleanroom

    通過對測得不同換氣次數下裝配式潔凈室室內的浮遊菌濃度和沉降菌濃度的一元線性回歸分析得出浮遊菌濃度和換氣次數的關系、沉降菌濃度和換氣次數的關系以及浮遊菌和沉降菌之間的關系，反映了動態情況下，細菌運動的隨機性。
  2. The paper analyzes the non - lineal relations of the quantity of heat exchange and water flux of coil exchanger in part - load operating condition, the shortage of deciding the water flux in bypass pipe, the disadvantage that the operating condition of pumps and chiller ca n ' t be met with the load change of the air conditioning system in different operating condition of using pressure - difference bypassing control in primary water pump system. using load control method in the change of the operating condition of primary water pump system can realize that the load change is small and reasonable in the on / off condition of pumps and m m chiller by comparing load control method in primary variable - flow water pump system with pressure - difference bypassing control method, back water temperature control method

    本論文從目前空調工程中使用的變流量水系統入手，研究了盤管換熱器在部分負荷下水流量與換熱量的非線性關系，分析了文獻中介紹的旁通管通流能力選擇的不足之處和一次泵水系統採用壓差旁通控制時，工況轉換不能滿足系統控制要求的缺陷；比較了一次泵變流量水系統中壓差旁通控製法、回水溫度控製法、負荷控製法的精確性，並得出了在一次泵水系統的工況轉換時，採用負荷控製法能使冷水機組及其相應水泵在啟停時的負荷變化范圍較小，更符合建築物的冷量需求，節能效果較好的結論。
  3. Standard test method for structural performance of sheet metal roof and siding systems by uniform static air pressure difference

    用均勻靜態空氣壓差法測定薄金屬板屋頂和板壁系統結構性能的標準試驗方法
  4. Genetic analysis shows that it may be caused by the difference of the response of each area to winter monsoon ' s abnormal, the kuroshio and our offshore is influenced mostly by heat flux between the sea and atmosphere, but in the other areas, the abnormal current incited by abnormal wind has decisive effect on the change of the sea temperature, at the same time, air pressure also has some impact on the sea temperature

    其區域性形成的原因主要可能是因為各海區對冬季風異常的響應方式不同，強冬季風使得黑潮與我國近海海洋過多散熱，海溫降低；在西北太平洋暖池北部，強冬季風引起西風異常，從而引發異常氣旋性環流，海水輻合下沉加熱其表層以下海水，同時異常環流使得更多東側異常暖水向西加熱其表層水；在黑潮與親潮交匯處的升溫也主要是由於強冬季風導致的流場異常，海水輻合下沉升溫。
  5. Concludes that the undesired effect of temperature difference could not be eliminated just by the negative pressure difference between adjacent rooms, that the contaminant air exchange would increase about 50 % in the temperature difference of 2 than that in the temperature difference of 0, and that such contamination could be reduced to about 1 / 31 ~ 1 / 16 with the help of buffer rooms

    結果顯示，溫差作用是一般壓差作用抵消不了的； 2溫差時污染物交換量比0溫差時增加50 %左右；緩沖室可對溫差作用引起的污染物交換起到15 ~ 30倍的動態隔離作用。
  6. Air pressure difference

    空氣壓差
  7. Standard method for testing sectional garage doors : determination of structural performance under uniform static air pressure difference

    住宅車庫門的標準試驗方法:用均勻靜態空氣壓差法測定結構性能
  8. Standard test method for structural performance of exterior dimension stone cladding systems by uniform static air pressure difference

    用均勻靜態空氣壓差法測定規格石料的房屋骨袈外墻體系結構性能的標準試驗方法
  9. Two typical examples analyses are conducted for the average conditions both of winter and summer climates under vapor diffusion and air leakage. a further discussion is set forth to determine the main factors that the moisture accumulation in wall is affected. it is found that the factors are the relative humidity at the wall surface, indoor temperature, permeability, air pressure difference and rate of the infiltrative or exfiltrative airflow

    本文首先研究了墻體內的濕氣遷移過程，詳細分析了濕積累現象形成的原因，通過對夏、冬兩季平均氣候下墻內溫度、水蒸氣壓力、相對濕度及濕積累在僅有擴散、擴散與空氣滲透同時存在等情況所作的具體計算，發現墻內、外表面的相對濕度、室內溫度、滲透率、空氣壓差以及空氣的滲流速度是影響墻內濕積累的主要因素。
  10. In this system, mean velocity pipe is applied to transform the air velocity signal into pressure difference signal, and then the pressure difference signal is input into pressure difference transmitter to realize the transform of the pressure difference signal from non - electricity signal to electric current, and through the resistance in the corresponding sampling circuit the electric current is transformed into voltage signal ; the thermocouple is used as the primary element to realize the transform from temperature signal to the voltage signal ; under the control of communication agreement module, diversified voltage signal is transported into computer by way of a / d conversion module, and then the monitoring software compiled beforehand is transferred to deal with all the voltage signals relatively, the result of which is conveyed to relative interface to display

    該裝置具有三個特點：一是採用表面式測溫方法，有效地減少了元件的維護與損耗；二是採用工業控制計算機及信息就地採集、數據總線傳輸的方式，充分利用計算機和數據自動採集方面的技術，實現各種參數的在線測量，監測指標全面，能與dcs系統聯用，具有技術先進性和一定的前瞻性；三是採用顯示器配工業觸摸屏的顯示方式，為現場運行人員提供了簡單、易學、方便的操作模式。本裝置自2001年8月投入運行以來，有效地幫助、指導運行人員進行燃燒調整，對于鍋爐和機組的安全、經濟運行發揮了重要作用。
  11. Finally to accomplish the development of air speed measure components being based upon above discussion, the paper chose rationally hardware equipments, such as the tiny pressure difference sensor, the data collection system, the industrial control computer etc, solved the communication interface problems of the hardware platform, compiled the system software of the air speed on - line monitor, and raveled out a series of technical problems about the signal real time conversion, transfer, modify, calculate, display and so on

    在此基礎上，對微差壓變送器、數據採集系統、計算機等硬體設備進行了合理選型，解決了硬體平臺的通訊介面問題。編制風速監測系統軟體，解決信號實時轉換、傳遞、修正、計算、顯示等監測系統二次部分開發的一系列技術問題。
  12. It was still a technical problem on how to add the air to the reactor in so small pressure difference. in addition, the photocatalytic reaction efficiency was very low at the high speed. the reactor will be large, the price will be very high and the electricity will be enormously consumed during the photocatalytic - oxidation of h2s in the methane

    主要原因是沼氣中不含氧，使用時氣體流速大，壓差小，而用光催化氧化方法消除h _ 2s需要有相當量的氧參與，在壓差很小的情況下，一次空氣的加入存在技術困難；在高氣體流速條件下，光催化效率低，若用光催化方法消除h _ 2s ，反應設備龐大，耗電量高，價格昂貴，農民難以負擔。
  13. Standard test method for water penetration of exterior metal roof panel systems by uniform static air pressure difference

    採用均勻靜態空氣壓差分析外部金屬屋面板系統防水漏性能的標準試驗方法
  14. Standard test method for water penetration of exterior windows, skylights, and doors by rapid pulsed air pressure difference

    使用快速脈沖氣壓差法進行外窗天窗和門的水滲透性標準試驗方法
  15. Test method for water penetration of flat plate solar collectors by uniform static air pressure difference

    均勻的靜氣壓差下平板太陽能收集器的透水性的試驗方法
  16. Standard test method for water penetration of exterior windows, skylights, doors, and curtain walls by cyclic static air pressure difference

    用循環靜態氣壓差法測定外窗天窗護墻及門滲水度的標準測試方法
  17. Standard test method for water penetration of exterior windows, skylights, doors, and curtain walls by uniform static air pressure difference

    用統一的靜態壓差法測定外窗天窗護墻和門滲水度的標準測試方法
  18. Standard test method for structural performance of exterior windows, doors, skylights and curtain walls by uniform static air pressure difference

    用統一靜態氣壓差法測定外窗門天窗和幕墻結構性能的標準試驗方法
  19. For the problem that on - line monitoring of primary air of direct firing pulverizing system ca n ' t be complete achieved, the chaotic properties of parameter change of two - phase flow in pipe is analyzed in the paper, according to the pressure difference signal of two - phase flow system

    目前電站鍋爐直吹式制粉系統的一次風氣固兩相流流動狀態在線監測仍未得以實現，針對這一難題，本文首次基於管道內氣固兩相流差壓信號對其流動狀態變化的混沌特性進行理論研究。
  20. Standard test method for field determination of water penetration of installed exterior windows, skylights, doors, and curtain walls by uniform or cyclic static air pressure difference

    用統一的或循環的靜態氣壓差法現場測定已安裝的外窗天窗護墻及門滲水度的標準測試方法
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