氣體對流 的英文怎麼說

中文拼音 [qìtǐduìliú]
氣體對流 英文
gaseous exchange
  • 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...
  • 體 : 體構詞成分。
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 氣體 : gas; gaseous fluid
  1. The rising temperature in the cave, the lamp - light ' s toasting and the convictive air made the humidity of the whole or part of the cave descend, which made the speleothem sightseeing dry, cracked and weathering. the acid air from the outer and the highly dense co2 would cause acid erode action to the speleothem sightseeing with water vapor. the existence of lamp - light offered a good chance for the lightloving plant to grow up, thus a lot of bryophyte covered the speleothem sightseeing

    洞穴升溫、燈光的烘烤及空氣的對流致使洞穴濕度或局部濕度降低，使景觀產生乾裂、風化；氣流帶入的洞外酸性氣體及高濃度co _ 2在高濕的條件下，結合水汽對洞穴景觀產生酸侵蝕作用；燈光的存在為燈光植物生長提供了條件，使大量的苔蘚類植物生長于鐘乳類景觀的表面；洞外大氣粉塵的進入，給洞穴帶來了非常嚴重的破壞，粉塵在洞內高濕的環境下大量沉降，附著于鐘乳類景觀的表面，致使受污染面發黑，毫無光澤。
  2. The quality of buffer layer and thin films was analyzed by afm, xrd, rheed and xps respectively. the effect of the experimental parameters such as carbonization time, working pressure, c source gas flow rate, carbonization temperature, different carbonization gas and substrate on the carbonization process was studied firstly. it was observed that the size of particles was increased with the increase of carbonization time and the rms was opposite, but the trend was reduced while the carbonization time was long enough ; the size of particles was increased with the increase of working pressure too, and choosing a proper working pressure could get a smooth surface ; the size of particles was unobviously changed while the gas flow rate was low, but it was notability increased with the increase of gas flow rate while the gas flow rate was high enough, and a smooth surface could be also obtained by choosing a proper gas flow rate ; with the increase of carbonization temperature, the size of particles was increased, the rms is decreased and a good single - crystalline carbonization layer could be obtained, but a rough surface was formed at a excessive high temperature ; the rms of

    對于碳化工藝，側重研究了碳化時間、反應室氣壓、 c源氣體的流量、碳化溫度以及不同種類的c源氣體、基片取向等因素對碳化層質量的影響，研究結果表明:隨著碳化時間的增長，碳化層的晶粒尺寸隨之變大，表面粗糙度隨之降低，但當碳化到一定時間之後，碳化反應減緩，碳化層的晶粒尺寸以及表面粗糙度的變化幅度變小;碳化層的晶粒尺寸隨反應室氣壓的升高而變大，適中的反應室氣壓可得到表面比較平整的碳化層;在c源氣體的流量相對較小時，碳化層的晶粒尺寸隨氣體流量的變化不明顯，但當氣體流量增大到一定程度時，碳化層的晶粒尺寸隨氣體流量的增大而明顯變大，同時，適中的氣體流量得到的碳化層表面粗糙度較低;碳化溫度較低時，碳化層的晶粒取向不明顯，隨著碳化溫度的升高，碳化層的晶粒尺寸明顯變大，且有微弱的單晶取向出現，但取向較差，同時，適中的碳化溫度可得到表面平整的碳化層;相比于c _ 2h _ 2 ，以ch _ 4作為c源氣體時得到的碳化層表面平整得多;比起si （ 100 ） ，選用si （ 111 ）作為基片生長的碳化層的晶粒取向一致性明顯更好。
  3. Nitrogen screen, rare factive gas and nuclear heat are the mainly compos it ion

    其中稀薄氣體對流熱、輻射熱和核沉積熱是熱負荷的重要組成部分。
  4. The diagonal feature may be caused by twin jets of gas blasting away from the hidden star

    對角線狀的結構可能是從隱藏恆星吹出的孿生氣體噴流造成的。
  5. Some conclusions can be drawn from the experiment. first, the discharge coefficient of liquid is almost constant when the pressure before injecting is high enough, but the discharge coefficient of gas fluctuates because of the influence of liquid flowing. second, when the total pressure of gas is low, under the same total pressure, increasing the pressure before injecting or under the same the pressure before injecting, lowing the total pressure of gas make the mean diameter smaller

    流量特性試驗表明，在液體噴注壓降較高時，液體的流量系數基本不變，但是氣體的流量系數受液體流動的影響較大;霧化特性試驗表明，在同一氣體總壓條件下，增大液體噴注壓降或者在相同液體噴注壓降條件下，減小氣體總壓對液滴霧化有利。
  6. In this paper, high heat penetration into a moving particulate bed is described mathematically with a comprehensive heat and mass transfer model. the distribution of gas velocity and pressure, the temperature field of gas and solid in the moving particulate bed are examined for different conditions. the results show that thermal penetration into the moving packed - bed particles by fluid flow in porous media is high only in the position near the gas entrance. the thermal penetration thickness tends to increase with the fluid flow velocity and decrease with the particle moving velocity. in the region of thermal penetration, the porosity of solid bed has significant effect on gas field and pressure loss. it is feasible to reduce the gas pressure loss by a larger width / height packed bed in design and operation. the correspondence between thermal infection depth and particle bed height would be helpful to keep high oapacity of reactor and reduce the cost of operation

    針對移動顆粒床中物料層內的高溫氣體滲流傳熱現象，考慮滲流與傳熱的相互作用，採用局部非熱平衡假設建立了多孔介質滲流傳熱物理數學模型並進行了數值計算.研究了不同情況下床內填充多孔介質中的流速、氣固溫度和床層壓力損失.計算結果表明，高溫熱氣對移動床顆粒料層的熱滲透主要發生在滲流入口端區域，增大入口滲流速度以及減小床層物料下移速度將導致物料溫度沿床高慢速下降，熱滲透深度擴大，熱滲透作用區域內的物料溫度水平提高.在熱滲透作用區域，孔隙率對流場和壓力損失有很大的影響.研究結果對于移動顆粒床反應器的設計與運行具有一定的參考作用
  7. Based on the analysis of regime of spray and heat transfer, the spray nozzles were redesigned to distribute liquid in the center area of th e tower and the gas inlet was enlarged to raise gas velocity

    根據對順流式空塔的噴淋及傳熱模式的分析，重新設計了噴嘴，使噴淋液在設備中心附近集中；縮小了進氣管直徑，以提高進口氣體的流速。
  8. Standard test method for permeability of rocks by flowing air

    流動氣體對巖石滲透性的標準試驗方法
  9. In the experiments, we also found the - sources flow rate, temperate of the substrates, annealing time and annealing temperature have an important infuence to epitaxial quality of the films

    在實驗過程中，我們也發現-族源氣體的流量比、襯底溫度、退火時間和退火溫度對外延晶體的生長質量也有重要的影響。
  10. Based on the gas flow model in gas reservoir and the fluid flow model in horizontal well, a couple model is developed and used for numerical computing study of single flow performance in horizontal borehole

    摘要根據氣藏內氣體的流動模型和水平井井筒內流體的流動模型，建立了耦合模型，通過該耦合模型對氣藏中的水平井井筒內單相流動特性進行了數值計算研究。
  11. As the key of the sample injection, a digital control instrument of mass flow controller ( mfc ), which can work in online and offline mode, was designed. it can give 4 flow signals accurately at the same time. the concentration and flux of the sample gas can be set by the instrument software

    進樣裝置的核心是自行設計開發的新型流量控制儀，該儀器採用數字介面，可以以聯機和脫機方式工作，能夠同時快速準確地輸出4路流量控制信號，對測試氣體的流量和濃度進行設定。
  12. The influence of aqueous phase trapping on gas flow by pore scale network model

    孔隙網路模型法計算水相滯留對氣體滲流的影響
  13. In order to know the relationship between gas - content and pipeline ' s pressure drop, the thesis deduces the pressure drop calculating equations based on uniform flow pattern and separating flow pattern. the equations show that pressure drop is made up of three parts, that is, friction resistance effect, gas acceleration effect and the gravity effect. and the research has shown that the gas has little effect on pressure drop. in the horizontal pipeline, the resistance effect must be overmatched the acceleration effect

    為探討加入的氣體對管道壓力的影響，本文基於分相流和均相流兩種模型分別推導了三相流管道的壓降公式，表明無論是分相流模型，還是均勻流模型，管道內流體總的壓降是由三項組成的，即摩擦項、加速項和重力項，並得出了加氣對管壓變化不大的結論，所以認為在水平管道中，要獲得有效的減阻，則要使摩擦阻力分量的減小效應大於漿體加氣的加速效應。
  14. The size of the nanoparticles prepared with the flow - levitation method can be controlled by controling the gas pressure in the action tube, the velocity of cooling gas flow and the temperature in the melt metal globule

    自懸浮定向流方法制備納米鋁粉和銅粉的過程中，通過控制反應管內的氣體壓力、冷卻氣體的流速、熔球的溫度等因素可以對粉體的尺寸分佈進行控制。
  15. According to different optics - reverberation character of water and gas, this paper put forward how to identify gas from the gas - water digital image and how to f - urther calculate void fraction. the result shows that the method possesses relatively satisfactory precision

    基於水和氣體對光的反射特性的不同，提出了一種自動識別水氣二相流中的氣泡的數字圖像處理方法，並進一步給出計算二維、瞬時摻氣濃度場的演算法。
  16. In air - water system, the influence of gas superficial velocity on hydrodynamic parameters and volumetric mass transfer coefficient ( k, a ) is investigated. in order to simulate microorganism, a series doses of solid particle are added into water. in such an air - water - solid particle system, the influence of solid concentration on hydrodynamic parameters and volumetric mass transfer coefficient are studied

    在空氣-水體系研究了表觀氣速對流體動力學參數和傳質動力學參數的影響；以固體顆粒模擬生物相、以柔性填料模擬生物填料床在空氣-水-固體顆粒和空氣-水-填料體系中研究固含率對流體動力學參數和傳質動力學參數的影響；以cmc溶液模擬實際操作中的液相介質研究液相粘度對上述參數的影響； 4
  17. 2 3 specification for the installation and maintenance of gas fires, convector heaters, fire back boilers and decorative fuel effect gas appliances - gas fires, convector heaters, fire back boilers and heating stoves 2nd and 3rd family gases

    燃氣爐對流式加熱器回火鍋爐和裝飾性燃料氣體器具的安裝和維修規范.燃氣爐對流式加熱器回火鍋爐和加熱爐
  18. 2 3 specification for the installation and maintenance of gas fires, convector heaters, fire back boilers and decorative fuel effect gas appliances - decorative fuel effect gas appliances of heat input not exceeding 20 kw 2nd and 3rd family gases

    燃氣爐對流式加熱器回火鍋爐和裝飾性燃料氣體器具的安裝和維修規范.輸入熱量不超過20kw的裝飾性燃料氣體器具
  19. 2 3 specification for the installation and maintenance of gas fires, convector heaters, fire back boilers and decorative fuel effect gas appliances - inset live fuel effect gas fires of heat input not exceeding 15 kw, and fire back boilers 2nd and 3rd family gases

    燃氣爐對流式加熱器回火鍋爐和裝飾性燃料氣體器具的安裝和維修規范.輸入熱量不超過15kw的插入式燃料氣體爐和回火鍋爐
  20. This allows a parallel flow heating in one shaft, i. e. the parallel flow of limestone and combustion gases, and a regenerative preheating of the limestone in the second shaft by the mixture of combustion gases and cooling air

    這就允許在一個窯筒里有併流燃燒，即石灰石和助燃空氣的并行流動，而在另一個窯筒里是助燃空氣和冷卻空氣的混合氣體對石灰石的再生預熱。
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