透氣性值 的英文怎麼說

中文拼音 [tòuqìxìngzhí]
透氣性值 英文
permeability number
  • 透 : Ⅰ動詞1 （滲透; 穿透） penetrate; pass [seep] through 2 （暗地裡告訴） tell secretly; let out; lea...
  • 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...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 透氣 : 1. （空氣通過） ventilate 2. （呼吸空氣） breathe freely
  1. The control - equations were solved with upwind tvd algorithm and elemental chemical reaction model, with the point - implicit used to overcome the numerical stiffness of chemical reaction source term

    數值結果顯示，當爆轟波平掠過惰性氣體界面時，形成了爆轟波、界面、透射激波以及稀疏波相互作用的現象。
  2. Numerical simulation of the development of the secondary flow vortices and aerodynamic characteristics of a turbine rotor cascade

    透平動葉柵二次流渦系演變及氣動特性的數值模擬
  3. The paper hopes to extract a solution of a nonlinear partial differential equation, a quite new model, of low - permeability gas reserves, then studies the penetraial character. the pose of the model has already been proved theoretically [ 4 ], which encourages us to seek an aptitude numerical calculation and to realize the computation

    本文希望對一個低滲透氣藏非線性偏微分方程的數學新模型的求解，來研究具有滑脫效應下的滲透特徵，利用模型的適定性在理論上已經獲證的結果，探尋恰當的數值計算方法並且實現編程實現計算機電算化。
  4. Numerical simulation of full three - dimensional viscous flow field in a multi - stage transonic gas turbine

    某雙級跨音速燃氣透平全三元粘性流場的數值分析
  5. 2. according to the weighted average, soil co2 concentration is 0. 58 - 13. 29 times of that in atmosphere and is relatively lower than similar research, meanwhile, soil co2 concentration in profile varied irregularly, which possibly is due to the chemical and physical characteristic of loess soils, season change and arid climate etc. the variation of soil co2 concentration in profile is mainly controlled by soil temperature and soil moisture, in contrast with soil temperature, the control role of soil moisture is minor. in conclusion, in order to have a good command of the distribution and change rule of soil profile co2 concentration as well as its effect factors, multi - point and successive location experiment should be made, meanwhile establish indoor soil - pillar monitoring experiment

    土壤co _ 2的濃度約為大氣co _ 2濃度的0 . 58 ? 13 . 29倍與同類研究相比要低，這是與黃土的土質特性，觀測期又逢特別乾旱年制約了土壤微生物的活動，再加上土壤中有機質虧損，養分不足造成的；土壤co _ 2含量的變化是隨溫度的升高而升高，在夏季達最高值，冬季最低；在土壤co _ 2濃度變化的影響因子溫度和水分中，溫度的影響作用高於水分；土壤剖面co _ 2濃度隨著深度增加，總的變化趨勢是遞增的，但也有反復，甚至有的順剖面而下幾乎保持一恆值，這與季節變化和黃土自身結構的通透性以及在觀測期內的乾旱氣候等條件有關。
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