非稳态的

In order to obtain the variation law of temperature during casting solidification to improve casting quality,a finite element method combining with a finite difference method was used to discretize time and space variables in the governing equations of astable heat-conduction in the process of casting solidification so as to obtain the algebraic equations for casting and mold temperature.

为了掌握铸件凝固过程中温度场的变化规律以提高铸件质量，采用有限元和有限差分相结合的方法离散铸件凝固过程非稳态热传导方程的空间和时间变量，得到了关于金属铸件和铸型温度的代数方程。

This article provides a new method in treating this polymerization process by using statistical method.

本文运用统计的方法，克服了非稳态方法的限制。

The heat transfer in ladle wall is described with non-steady differential difference equations under one-dimension cylindrical coordinates and rectangular coordinates.

其中包壁的传热分别采用圆柱坐标和直角坐标下的一维非稳态导热微分方程及其初始条件和第三类边界条件来描述，用有限差分法求解。

According to Tsao and Sargent's hypothesis, the basic model of unsteady lubrication in mixed film lubrication regime in strip rolling was presented.

根据Tsao和Sargent的混合润滑假设，建立了板带轧制时混合润滑状态下的非稳态润滑基本模型。

Finally , we discuss the unsteady state temperature distributions with

并且以不同的参数探讨系统处於非稳态下的温度分布。

The result of simulation showed that the method of water assignment putting average speed as parameter can meet the demand of slab cooling in the process of unsteady state.

模拟的结果表明，非稳态过程采用平均拉速配水能满足铸坯的冷却要求。

Turbulence is an extraordinarily complex three-dimensional flow which is unsteady, inerratic and composed of eddies.

摘 要：湍流是一种高度复杂的三维非稳态、带旋转的不规则流动。

The dynamic performance during fibrous filter clogging and the effect of various parameters on filtration performance were investigated using polydisperse ashes.

使用多分散性粉尘，在实验室内测试了天然气用纤维过滤器的非稳态性能，以及各种操作参数对其性能的影响规律。

In chapter three, on the basis of non-steady tire theoretical model, the definition equation of relaxation length is get by expanding E function in series of s and truncating the higher order.

第三章，在轮胎非稳态侧偏特性理论模型的基础上，通过对E函数进行低阶近似，得出了侧偏松弛长度的表达式，给出了侧偏松弛长度随侧偏角变化关系。

According to the technological characteristics of soaking furnace of CSP line, the 3D-unsteady mathematical model of the loss of iron scale in soaking process was established with the experimental reheating furnace as instance by utilizing the methods of equivalent thermal resistance and equivalent mass. The effect of thickening of iron oxidation on heat transfer between gas and slab was considered in the model of loss of iron scale.

根据紧凑式带钢生产均热工艺特点，利用等效热阻和等效质量法，以实验均热炉为研究对象，建立三维非稳态钢坯均热过程氧化烧损数学模型，考虑氧化层的增长对传热过程的影响对氧化烧损量进行计算。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。