空氣濃度 的英文怎麼說

中文拼音 [kōngqìnóngdù]
空氣濃度 英文
air concentration
  • 空 : 空Ⅰ形容詞（不包含什麼; 裏面沒有東西或沒有內容; 不切實際的） empty; hollow; void Ⅱ名詞1 （天空） s...
  • 氣 : Ⅰ名詞1 （氣體） gas 2 （空氣） air 3 （氣息） breath 4 （自然界冷熱陰晴等現象） weather 5 （氣味...
  • 濃 : 形容詞1. （液體或氣體中所含的某種成分多; 稠密） dense; thick; concentrated 2. （程度深） （of degree or extent） great; strong
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 空氣 : 1 （大氣） air; atmosphere 2 （氣氛） atmosphere 3 （氣閘） air brake4 pneum ; pneumo ; pneumat ;...
  • 濃度 : potency; thickness; concentration; consistence; strength; consistency; density
  1. The additional flow is formed by the device of dentoid baffle, and the application of the device of dentoid baffle cooperated with a stilling basin has been investigated by systematic model tests. based on the research results, the hydraulic problems such as the characteristics of hydrodynamic pressure and cavitation on the head of the denotid baffle, the properties of flow under the condition that the device of denotid baffle is used with a stilling basin, the hydraulic computation about a stilling basin, the estimation of energy dissipation and its various affection factors, the mechanism and effect of energy dissipation, and distributions of velocity and pressure and aerating concentration, etc, have been analyzed ; the method and step of hydraulic design of device of denotid baffle by which the additional flow is produced has also been proposed

    文中利用齒墩設施實現附加射流，對齒墩設施與消力池聯合應用進行了大量的和系統的模型試驗，分析研究了中低佛勞德數條件下，齒墩墩頭的動水壓強及空化特性，齒墩設施與消力池聯合應用時的流態特性，消力池的水力計算，消能量的估算及其各種影響因素，消能機理和效果，消力池內的流速、壓強特性，摻氣濃度分佈等水力學問題，並提出了實現附加射流齒墩設施的水力設計方法和步驟。
  2. First in an 150 - 550 temperature range, the influence of oxygen concentration, space velocity and propene concentration on the no conversion was investigated and then also the macro kinetics of propene oxidization and no reduction

    本文研究了在pt al _ 2o _ 3催化劑上進行的hc - scr反應，用以稀燃發動機尾氣的治理。首先在150 - 550溫度范圍內考察了氧氣濃度、空速及還原劑濃度對no轉化的影響。
  3. In the second place, based on the asu of buggenum igcc plant in netherlands, both static and dynamical model for distillation tower of the asu are created and some valuable conclusions are gained as well. finally, a compartmental simplified model is created for distillation tower of the asu, in order to reduce the simulation time and increase the simulation efficiency. the new model will be helpful to the further simulation and on - line optimal control for the asu of the igcc plant

    其次，本文以荷蘭buggenum電站的空分系統為原型，基於matlab建立了空分系統精餾塔的半圖形化動、靜態數學模型，並通過模擬，得出了一些有價值的結論：當空分系統的壓力變化時，氧氣產品濃度的響應時間常數為兩小時左右，說明空分系統是igcc電站最大延遲環節；而且雖然氧氣濃度最後會穩定在igcc電站所要求的范圍之內，但在過渡過程中會超出限制，這些都為igcc電站的安全運行及控制系統設計提供了有價值的信息。
  4. A kind of measurement was developed to measure the air concentration of water and the result showed the possibility of entrained air existing near the wall of drop shaft. that is to say, the wall of drop shaft may be protected by entrained air from cavitation damage to some extent

    本文設計了一種適用於近壁區水流摻氣濃度測量的方法，對空腔段水流摻氣濃度進行初步測量，發現井壁附近水流存在摻氣的可能，這對改善水流空化條件能起到積極作用。
  5. Study on distribution law of leaked air and oxygen content in the gob of fully mechanized coal face with caving mining

    綜采放頂煤工作面采空區漏風與氧氣濃度分佈規律研究
  6. When the air is fed to cathode of pemfc, the oxygen concentration decreases along the channel because of reaction, and the oxygen distribution is affected by land of the flow plate. so the oxygen distribution is uneven on cathode side and leads to dropping of cell performance

    當pemfc陰極供給空氣時，因氧氣在催化層參與反應被消耗，其濃度沿流道逐漸降低，加之受流道間隔的影響，陰極側氧氣濃度不均勻，這導致電池性能惡化。
  7. As a result, the temperature of the durene solution and the feed rate of air had a greater influence on the vapor phase concentration of durene, whilethe influence of the height from airway nozzle to liquid level and the feed air temperature on the vapor phase concentration was small

    實驗結果表明：均四甲苯溶液的溫度、空氣進料量對均四甲苯氣相濃度影響較大，而導入管距離液面的高度和空氣溫度影響較小。
  8. The results show that the water condensation rate increased with increasing air inlet humidity ratio, desiccant inlet concentration and desiccant flow rate, and changed very little with air inlet temperature and desiccant inlet temperature

    結果表明：除濕量隨著空氣濕度、除濕溶液的濃度和除濕溶液的流量的增加而增大，而空氣溫度和溶液溫度對除濕量的影響非常小。
  9. In order to increase the energy dissipation of stepped spillway at iarge unit discharge, the integhty dissipater of aerated splitter pier and steppe characteristics is studied. because of verticaj diffhaion now by aerated splitter and impachng steppe 3 by drop flow, the air concentration and the energy dissipation efficiency are greatly increased ; the potentiality of cavitations is decrease. in special at large unit discharge, this effect is more obvious

    摻氣分流墩的增加，明顯地改善了階梯面上的壓強分佈，消除或減小了階梯凹角內和立面上部的負壓；由於摻氣分流墩使水流縱向擴散以及挑流落下后在階梯上的撞擊，使水流的摻氣濃度和消能率都得到較大的提高，降低了階梯面空蝕的可能性，特別是在大單寬流量時，這種效果更為明顯。
  10. Variations in pressure with and without aeration in cavitation region are measured and the compressible characteristics of pressure waveforms and relation between mach number and compression ratio are analyzed ; the time - averaged pressure profiles of different air concentration in cavitation erosion region are measured, the variations of the pressure with air concentration and effects of back pressure on cavitation erosion are analyzed ; the relations between least air concentration to prevent cavitation erosion and flow velocity are proposed ; the cavitation numbers with and without aeration in cavitation region are compared

    實測了空化區摻氣前後壓力的變化，分析了壓力波形的可壓縮流特徵以及馬赫數與壓縮比的關系；實測了空蝕區不同摻氣濃度的時均壓力分佈，分析了壓力隨摻氣濃度的變化及背壓對空蝕的影響；提出減免空蝕的最低摻氣濃度與流速的關系，比較了摻氣前後水流的空化數。
  11. The nox concentration of the outlet of the combustion chamber increases with the temperature of preheated air

    得出燃燒室出口no _ x的濃度隨預熱空氣溫度的增加而增加。
  12. In this model, the most essential hypotheses were brought forward : the room in the building is a node neglecting its ’ volume ; smoke mix with air in a very short term, the temperature and the smoke concentration are well - proportioned in the room. therefore, the net - model can only apply to the special building : there is little discrepancy in room volume

    另外，該軟體採用的數學模型是網路模型，而網路模型最基本的假設就是:無論建築物中任一受限空間的體積大小，統一地視為一個節點;在火災過程中，煙氣與空氣混合過程是在瞬間發生的，受限空間內任意一點的溫度、煙氣濃度等都是均勻的。
  13. The surface material is liable to erosion wear with high - velocity sediment - laden flow, hi this paper, sand wear mechanisms are discussed and some effects of significant flow factors on material wear are analyzed ; the possibility of preventing erosion wear with aeration is proposed ; based on test data, the formula for calculating the concrete material wall surface wear rate is derived. it is indicated that the wear rate is related to the air concentration, the strength of material, the flow velocity and the sediment content. it is shown that wear rate can be reduced with the help of flow aeration

    分析了空蝕與磨蝕的不同物理特徵；探討了沙粒磨蝕機理，提出了影響磨蝕vi河海大學博士學位論文一的因素；研究了摻氣抗磨的可能性：建立了混凝土材料壁面磨蝕率的計算公式；說明含沙水流對固壁材料的磨蝕率隨摻氣濃度、材料強度的增大而減小，隨水流流速、含沙量的提高而增大；利用摻氣可有效地降低過流表面的泥沙磨蝕率。
  14. Many of the methanogens and other anaerobic organisms that dominated the planet before the rise of oxygen would have either perished in this revolution or found themselves confined to increasingly restricted habitats

    許多在氧氣濃度上升前主宰地球的產甲烷菌與其他厭氧生物，若非在此異變中滅絕，就是發現自己的生存空間已逐漸遭受壓縮。
  15. Photosynthesis and transpiration have no obvious difference between different age s. viciifolia, but they have consanguineous physiological responses to environmental factors such as photon flux density, air temperature and the content of soil water. compared with caraganar, s. viciifolia formed the physiological mechanics of less photosynthetic rate and less tranpiration rate to resist drought

    狼牙刺的凈光合速率同光合有效輻射、大氣溫度和二氧化碳濃度之間沒有顯著相關性，與土壤含水量顯著正相關；蒸騰作用與光合有效輻射、土壤含水量及空氣溫度有很好的正相關性，與大氣濕度有負相關性。
  16. Indoor air quality - diffusive samplers the determination of concentrations of gases and vapours - guide for selection, use and maintenance

    室內空氣質量.氣體和蒸氣濃度測定用擴散樣品.選擇使用和維護指南
  17. Ambient air quality - diffusive samplers for the determination of concentrations of gases and vapours - part 3 : guide to selection, use and maintenance ; german version en 13528 - 3 : 2003

    環境空氣質量.氣體和蒸氣濃度測定用擴散取樣機.第3部
  18. Ambient air quality - diffusive samplers for the determination of concentrations of gases and vapours - requirements and test methods - part 1 : general requirements

    環境空氣質量.氣體和蒸氣濃度測定用的擴散取樣機.要求和試驗方法.第1部分:一般要求
  19. Ambient air quality - diffusive samplers for the determination of concentrations of gases and vapours ; requirements and test methods - part 1 : general requirements ; german version en 13528 - 1 : 2002

    環境空氣質量.測定氣體和蒸氣濃度的擴散取樣機.要求
  20. Ambient air quality - diffusive samplers for the determination of concentrations of gases and vapours - requirements and test methods - guide to selection, use and maintenance

    環境空氣質量.測定氣體和蒸氣濃度用擴散樣品.要求和試驗方法.選擇使用和維護指南
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