简化方程

By way of introducing expression of salt solution concentration and Hendeson equation that describes equivalent moisture curve of hygroscopic material, the heat and mass transfer model is simplified and provides a theory proof that the transportation direction of water and vapor in the pore material is opposite but effects of two items can be integrated as an expression, Compared to traditional vapor permeating, the calculated results from the presented model in this paper that salt is not taken into considered is accurate.

根据建筑围护结构自身所处环境特点，开拓性建立了吸湿区范围内含盐多孔材料的热质迁移数学模型，通过引入描述平衡湿度曲线的Hendeson方程和盐溶液浓度的表达式，对含盐多孔介质热质迁移数学模型进行了简化，从理论上论证了多孔材料中液态水分和水蒸汽迁移二者过程的相反性和统一性。

With calculated flow field, adopting Lagrange model, obtain motion equations of water pedicles in separate-stage by simplification, and calculated rnotion tracks of water pedicles.

在计算的流场基础上，采用Lagrange法，经过简化，推导出了水滴运动方程并研究了水滴在流场内的运动情况，计算了水滴的运动轨迹。

A new simplified mathematical model has been established based on the balance of total energy with radiative heat transfer equation solved by discrete ordinates method.

采用数值模拟的方法，在进行合理简化后，建立总能量平衡基础上的炉内热过程数学模型，其中辐射传递方程的求解采用离散坐标法。

Aiming at the guided entity model of apiece component, some frame boards of skin, ventro-board and crossbeam is simulated with curve surface, strengthen rib, frame and bars are simulated with curves in this paper, predigesting entity models to geometry models.

在ANSYS中，选取体单元solid45、壳单元shell63、梁单元beam188、质量单元mass21分别对相应的几何模型划分网格，用耦合方程实现23-3航炮所简化的质量元同炮舱结构其它组件的连接，建立了炮舱结构的有限元模型。

It is of great importance that determination of the stress in slip line field to research on metal forming.

利用几何映射图解滑移线场应力，与按Hencky应力方程逐点计算的方法比较，不仅过程大为简化，而且更加直观清晰。

But when the pressure is bigger than 30MPa, there is a contrary phenomenon. The flow rate, particle size distribution and void fraction of the extraction bed have the complicated effect. 3Based on the broken-intact cells model, a dynamic model based on differential mass balance equation is developed according to the law of conservation mass. The expression of mass transfer flux is given by the analysis the process and the necessary hypotheses. The extraction process is described, and the expression of extraction rate of diosgenin is given.

3在引入破碎—完整细胞结构理论的基础上，根据质量守恒原理建立了基于微分质量守恒方程的动力学模型，通过对萃取过程的分析和必要的简化、假设，给出了不同阶段传质通量的表达式，在此基础上描述了萃取过程，并给出了超临界流体萃取薯蓣皂甙元的萃取收率表达式。

The cycle process of steam-water in drum, downcomer and water wall were simplified reasonably, according to the law of mass conservation and the law of energy conservation, the differential equation model of drum water level dynamic was constructed.

对汽包、下降管、水冷壁内汽水工质循环过程进行合理简化，依据物质及能量守恒定律，建立以微分方程形式描述的汽包水位动态模型。

The results show that perfect anatase nanocrystalline TiO2 can be obtained by SGRTSE method and the photocatalytic activity of TiO2 can be improved by doping and surface treatment. In the experimental system, the addings of proper salts are beneficial to the photocatalytic degradation of DBSNa. The pH value of solution, adding amount of TiO2, flow rate of air, and initial concentration are the main influence factors for the photocatalytic degradation of methyl orange, and the apparent reaction order is pseudo-first-order, which could be described by Langmuir- Hinshelwood equation.

结果表明：sol-gel法结合室温溶剂蒸发诱导可制备出晶型良好的锐钛型纳米TiO_2；过渡元素和稀土元素杂原子掺杂，贵金属掺杂和表面酸化处理是有效提高TiO_2光催化活性的途径；试验体系中，在DBSNa的降解过程中加入适量的盐，可以大大加速降解效果；光催化降解水中有机物，溶液pH值，TiO_2投加量，曝气速率，被降解物起始浓度等是影响降解效果的重要因素；对起始浓度较低的有机物光催化降解过程可利用简化的Langmuir-Hinshelwood动力学方程进行描述，反应级数为拟一级。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。