entrance region 中文意思是什麼
entrance region
解釋
擠塑模頭流入區-
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 -
Considering natural and social characteristics, the ecological restoration of water and soil conservation is proposed for rivers, reservoir entrance and reservoir region to purify water and ensure sustainable development of water supply
結合水庫水源地的自然、社會特點，提出對保護區內澗河、入庫口門、庫區等處及水土保持生態修復的設想，使水體水質得到凈化，進而保證水庫供水的可持續發展。 -
Passageways of metropolis in entrance and exit ( pmee ) act as a channel connecting metropolis s material system with outer regions, which sustain the political, economical and cultural role of metropolis, with the development of city economy and the integration of whole region, city highway transportation increases rapidly which lead to a new situation that city passageways in entrance and exit ( pcee ) face large pressure from outer highway and inner urban street traffic
大城市出入口道路是大城市物質系統與外部聯系的重要通道，是大城市發揮其政治、經濟、文化輻射功能的有力支撐。隨著城市經濟的發展和區域一體化的加速，城市公路運輸量以高速度增長，銜接公路與城市道路的出入口道路也面臨空前的交通壓力。 -
It is the entrance gate and, together with manaus, the most important city in the brazilian amazonic region
這是大門，並連同馬瑙斯時，最重要的城市之一，在巴西亞馬孫地區 -
The rehabilitation project of wastewater disposal factory in chunliuhe, dalian, which locates in the west of the city, at the entrance of chunliu river to the sea, is the earliest secondary wastewater disposal factory in northeast region
我公司承建的大連市春柳河污水處理廠改造工程是東北地區最早建成的城市二級污水處理廠，位於市區西部春柳河入海口。 -
The mesoscale structure, such as bow echo, strong rear inflow and weak echo region on the inflow entrance etc, with the squall line, caused the disasterous wind
對新一代天氣雷達資料分析揭示了此次颮線的典型的弓狀特徵、強的后側入流槽口以及入流槽口上的弱回波區等中小尺度結構特徵是造成災害性大風的成因。
分享友人