oxygen concentration 中文意思是什麼

oxygen concentration 解釋
氧濃度
  • oxygen : n. 【化學】氧，氧氣。
  • concentration : n. 1. 集中。2. 【化學】提濃，蒸濃，濃縮；濃度；稠密度；【礦物】汰選，選礦，富化。3. 集中注意，專心。
  1. The model 625 analyser is designed to monitor the dissolved oxygen concentration in boiler feed-water and other aqueous solution.

    625型分析儀用來監視鍋爐進水和其它水溶液中溶解氧的濃度。
  2. Success of the model was enhanced by increasing the oxygen concentration on initiation of the bypass, maintenance of an appropriate hematocrit and priming with non - citrated blood crystalloid

    此模式是以藉著在啟始?路時增加氧濃度，維持適當血球容積以及用無枸櫞酸之血液晶質啟動而使得本技術得以成功。
  3. Normal air contains only about 21 percent oxygen, but the oxygen concentration in the cans is 95 percent, and inhaling it can reportedly bring on a feeling of invigoration, the report said

    使用者將面具罩住嘴巴和鼻子，然後擠壓氧氣罐噴口，便呼吸到釋放出來的兩三秒的氧氣。
  4. Emission on nox in high temperature combustion with low oxygen concentration

    高溫低氧燃燒條件下氮氧化物的生成特性
  5. 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。
  6. The effort of manganese removal was studied and the kinetics of manganese removal was tried to establish. the factors of dissolved oxygen concentration, fe2 + concentration, ph, p concentration and closing of the filter were studied to evaluate their effort for biological manganese removal, and the correlation of residual manganese and oxidation - reduction potential was also discussed. as the iron content of water was high, experiment results showed that the reaction was zero order, as the iron content of water was low, the reaction was first order. the time needed for the cultivation of biological manganese removal was 60 70 days. the filter operated at the filtration rate of 8 10m / h, silica sand of effective size 0. 95 1. 25mm filled the filter to a depth of 1200mm

    試驗結果表明，成熟后濾砂表面濾膜的x射線衍射圖譜與mno _ x ? 5h _ 2o （ x = 1 . 86 ）的x射線衍射圖譜一樣，濾膜成熟后的結構在進水物質不發生變化的情況下不發生變化;合適的碳磷比對生物除錳有明顯的促進作用，試驗條件下的投磷量不會對出水造成二次污染;生物除錳需要亞鐵的參與，亞鐵的存在除了能夠促進微生物分泌胞外酶並刺激其活性外，還通過鐵離子的變價傳遞電子，催化錳離子的氧化反應，從而促進對二價錳的降解。
  7. With stable and reliable operation, compact structure, and strong air breathing ability, it enables to enhance the stocking density for fish and prawn, flow water by stir to increase the dissolved oxygen concentration in water, and make even water temperature to improve water quality, which is an idle equipment for high - yielding aquaculture

    具有工作平穩，運行可靠，結構緊湊，充氣能力強，提高魚蝦放養密度，攪拌水體流動，增加水中溶氧含量，能使水溫均勻達到改善水質的目的，是實現高產養殖的理想設備。
  8. Also, the author ’ s design strategy and creativity has been given in this paper. specifically, it includes : based on the feasibility analysis of the fit selection of control parameters in the aeration process, the aeration process of wastewater treatment of the joint - constructional complete - mixed activated sludge process has been aimed at in this paper. then, the state equations of the aeration process have been proposed in this paper, which is on the base of dissolved oxygen concentration ( do ) and discharge quantity of sludge ( qw ) as control variables, the concentration of bod and sludge as state variables. based on the present study on optimization control of wastewater treatment, the multivariable optimal control model with restriction factor has been presented in the paper with introducing modern control theory and system analysis into the field of activated sludge wastewater treatment,

    具體包括:以完全混合、表面曝氣合建式活性污泥工藝的污水處理曝氣過程為研究對象，在闡述了曝氣過程式控制制參數選取可行性的基礎上，建立了以溶解氧濃度do和活性污泥排放量qw為控制變量，以曝氣池中有機物濃度s和微生物濃度x為狀態變量的活性污泥曝氣過程的基本狀態方程;運用現代控制理論的觀點和污水處理理論，在現有關于污水處理最優控制問題研究的基礎上，建立了有約束條件多變量能耗最小數學模型，該數學模型是以有機物排放總量和狀態變量的末值條件作為約束條件，曝氣過程的能耗最小作為目標泛函;採用增廣拉格朗日乘子法對最優控制問題進行轉化，並對應用極大值原理求解能耗最小這一最優控制問題進行了詳細的解析;引入約束運算元，應用具有控制約束的共軛梯度演算法對能耗最小這一最優控制問題進行求解，並進行模擬實驗驗證。
  9. Meanwhile, oxygen concentration of culture medium containing embryos decreased with time ( p < 0. 0001 ). with the development of embryos, oxygen exhausting rate trended to increase

    未受精卵耗氧極低，而胚胎培養液中氧的濃度直線下降（ p 0 . 0001 ） ，而且隨著胚胎的發育耗氧率有上升的趨勢。
  10. It showed blood oxygen concentration was closely correlated with erythrocyte rheology. breathing 70 % oxygen after incremental exercise has auxo - action on recovery of erythrocyte rheology

    說明運動后高氧的吸入對紅細胞變形性的恢復確有促進作用。
  11. Research points out that the three key factors, which determine the nox emissions, are maximum peak temperature, rich oxygen concentration and the duration in which combustion products stay at high temperature zone

    船舶柴油機的氮氧化物主要是山于大氣中的氮在柴油機燃燒過程中被氧化而成。研究表明高溫、富氧以及燃燒產物在高溫區的停留時間是決定氮氧化物排放量的三個決定因素。
  12. 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。
  13. This paper researched rules of ignition and combustion stability under pressurized environment, discussed how to calculate ignition temperature, and also studied the effects of many factors, such as categories of semi - coke, total pressure, oxygen concentration, particle size, heating rate, on ignition character

    研究了加壓條件下半焦的著火規律和燃燒穩定性。討論了著火溫度的確定方法，對加壓下影響半焦著火特性的各種因素，如半焦種類、總壓、氧濃度、粒徑、加熱速率等進行了試驗研究。
  14. This paper analyses the heat absorption and evaporation process of the droplet, the combustion characteristic of motor spirit and ethanol motor spirit, and oxygen concentration of motor spirit and ethanol motor spirit was measured from burning to self extinguishing in the enclosed space

    摘要分析了細水霧滅火時液滴的吸熱蒸發過程和汽油與乙醇汽油的燃燒特性，進行了汽油、乙醇在封閉空間內從燃燒到自行熄滅時的含氧量變化測量。
  15. According to this characteristic, we can monitor the oxygen concentration in both the gas mixture and water

    利用此特性，可以對氣體混合物或水中溶解氧進行監測。
  16. A novel method for determination of oxygen concentration in the solvent of 2 - propanol with pvp

    異丙醇與聚乙烯基吡咯烷酮混合溶液中氧濃度的測定
  17. Aerotaxis ( aerotactic movement ) a taxis in response to an oxygen concentration gradient

    趨氧性:一種對氧濃度梯度產生回應的排序。
  18. Determination of explosion characteristics of dust clouds - determination of the limiting oxygen concentration loc of dust clouds

    塵雲的爆炸特性測定.塵雲的極限氧氣濃度loc的測定
  19. Determination of the explosion characteristics of dust clouds - part 4 : determination of the limiting oxygen concentration loc of dust clouds

    塵雲的爆炸特性測定.第4部分:塵雲的極限氧氣濃度loc的測定
  20. Determination of explosion characteristics of dust clouds - part 4 : determination of the limiting oxygen concentration loc of dust clouds ; german version en 14034 - 4 : 2004

    塵雲的爆炸特性測定.第4部分:塵雲的極限氧氣濃度loc
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