查询词典 recirculation

NOx and PM are the main exhaust emissions of diesel engines. Emission reduction technologies include turbocharging, turbocharging with intercooling, exhaust gas recirculation, aftertreatment system etc.

氮氧化物和微粒是柴油机的主要排气污染物，在现阶段柴油机排放改善主要针对NO_x和PM排放的降低。

In order to improve A/O process denitrification efficiency, five integrated control strategies of nitrate recirculation flow and external carbon dosage for denitrification were proposed and evaluated using the COST/IWA simulation Benchmark.

马勇 北京工业大学北京市水质科学与水环境恢复工程重点实验室，北京 100022彭永臻北京工业大学北京市水质科学与水环境恢复工程重点实验室，北京 100022孙洪伟北京工业大学北京市水质科学与水环境恢复工程重点实验室，北京 100022

Based on the experiment, the reaction process occurs in garbage burying column and the influencing factor of recirculation effect have been discussed in this paper. Further discussion on the removal mechanism of COD and kjeldahl nitrogen in leachate has also been made.

在以上实验的基础上，本论文分析在渗滤液回灌过程中，尤其是好氧回灌过程中垃圾填埋柱中发生的反应过程和回灌效果的影响因素，并对渗滤液中COD和凯氏氮去除的机理做了进一步的探讨。

aim to observe effect of sodium nitroprusside and recirculation following cerebral ischemia on cgmp production and distribution in gerbi1 hippocampus.

目的 探讨硝普钠及脑缺血再灌流对海马本部cgmp合成及分布差异研究。

5The leachate recirculation promoted the speciation of Cu and Zn shift fromunsteady fractions (acid soluble fraction and reducible fraction) to steady fractions(oxidable fraction and residual fraction), and attenuated their migration.

不同时期不同深度填埋层内Cu和Zn形态的差异明显，填埋垃圾的好氧环境的暴露能促使Cu和Zn从稳定态向不稳定态迁移。

The thesis establish some columns which filled with garbage in LiuLiTun landfill, compared with anaerobic, we make the leachate which from new garbage recirculate under the aerobic circumstance, and measure the normal water index, so as to look for the impact of recirculation treatment on landfill leachate.

本论文通过在北京市海淀区六里屯卫生填埋场内设置垃圾填埋模拟柱，对新鲜垃圾产生的渗滤液进行好氧和厌氧两种条件下的循环回灌，并对好氧和厌氧两种情况下回灌前后渗滤液的产生量、常规水质指标等分别进行监测和分析，比较好氧和厌氧两种情况下回灌处理技术对城市垃圾渗滤液的处理效果，探讨好氧条件对渗滤液进行回灌处理的工艺机理，找出好氧回灌的工艺参数。

Although the standard k-ε turbulence model has been proved to be a model adapting a large range of conditions, it does not fit in with the cases where the normal Reynold stress of fluid is of great importance. As generally known, these cases include at least some cases where recirculation or secondary flow takes place.

在目前多数研究中，采用的湍流模型为标准k-ε湍流模型，这种模型虽已被证实是一种适应范围较大的模型，但其并不适用于流体中雷诺正应力占重要作用的情况，目前所知，具有回流区和二次流的一些流动便属于此种情况。

By modifying the reactor geometry into streamlined shape,the recirculation cells can be reduced even eliminated so that smooth and rectilinear flow prevails in the susceptor region.

通过改变反应器的结构和形状来优化反应器设计，从而消除衬底上方的涡旋，得到光滑而均匀的流场。

Based on the principles of stepped firing in recirculation zones, several new type straightjet and revolving-pour burners are designed and manufactured which used for different power boilers and industral furnaces with combustion of pulverized coal, poor-gas or fuel-oil. The burners are tested and improved in practice and good results are finally achieced in variant degrees including strenthening flame stability, adapting to boiler capacities and rank of coal, raising combustion and heat transfer efficiency, and lowering the temperature of weste gas at the boiler tail.

应用回流区分级着火原理，设计和制造了几种不同结构型式的直流、旋流新型燃烧器，用于燃煤粉、煤气、油雾的不同类型的锅炉和工业炉，在实践中进行试验和改进，最终都在不同程度上取得了强化稳定燃烧、适应负荷和燃料品质变化、提高燃烧和传热效率、降低炉尾烟温的好效果。

Such processes usually need the recirculation of nitrified wastewater or the addition of external organic carbon and alkalinity.

这样的工艺往往存在着需进行硝化液回流或外加有机碳源和补充碱度，运行费用高，占地面积大，投资高等缺点。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。