深滲損失 的英文怎麼說
中文拼音 [shēnshènsǔnshī]
深滲損失
英文
deep percolation loss-
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The non - irrigation plantation in moving sand dune and sandy girder areas should adopt some biological and engineering measures such as runoff - collecting to improve effects of rainfall, reduce losses by evaporation and depth leaking, and improving circulation and transformation of water in sandy plantation ecology system by reasonable allocation
在無灌溉條件的流動沙丘和沙梁地，通過徑流匯集利用，充分實現降雨的有效化，利用各種生物和工程措施來減少植被系統的無效蒸發散損失和深層滲漏，通過合理配置提高水資源的循環與轉化是沙區發展免灌植被的主要途徑。The polyacrylonitrile have no use to improve the homogeneity of concrete. the homogeneity of concrete have bad effect to compression strength, but the effect to chloride ion coefficient of diffusion is not obvious. for concrete used generality, if it ’ s homogeneity is acceptable ( k 7 % ), the percentage of lost of the compression strength will lower than 10 %
勻質性對抗壓強度的影響較大，對氯離子滲透系數的影響不明顯，對於一般用途的混凝土，勻質性良好（ k 4 % ）時，強度損失在5 %以內，勻質性合格（ k 7 % ）時，強度損失在10 %以內;對于深層澆注的混凝土，離析度k 3 %時上下層強度的差異率才能保證在5 %以內。The hair ' s main composition is an amino acids, amino acids to can suffer the outside to affect in the factor and run off, and also can is influence by the internal factors with the chemicals ' s damage such as the weather season, if the body mainutrition, hair lack the vitality with the flexibility, therefore want to with regularity add the amino acids, it the contain to permeate the differential calculus son to can quickly permeate the hair the consolidation repair and maintenance for, becoming bing arrived by outside inside of deep place the amino acids composition, and make the hair shining brilliance, movement contain flexibility every moment
頭發的主要成份是氨基酸，氨基酸會受外有因素影響而流失，如氣候季節和化學品的損害，也會受內在因素的影響，如身體營養不良，頭發缺乏活力和彈性，所以要定期地補充氨基酸，本品特含滲透微分子能迅速將氨基酸成份滲透頭發深處，形成由外到內的鞏固修護，使頭發時刻煥發光彩，動感有彈性。分享友人