有限维的

In Chapter 2, a method for producing approximate point source responses in laterally varying model is introduced.

第二章给出了作者所发展的计算二维不均匀介质中点源理论地震图的有限差分近似算法。

Firstly, we establish a topological space associated to the derived category of a finite dimensional algebra with finite global dimension, which is a generalization of module variety and complex variety.

首先，我们在有限整体维数的代数的复形范畴上建立了复形拓扑空间。

In the mathematical equations to solve non-cooperative multi-dimensional nonlinear numerical approximation method is best for limited cooperation in the interests of the game in search of a new equilibrium.

在数学上解决多维非线性不合作方程组的最佳数值逼近方法就是争取有限合作，在博弈中寻求新的利益平衡点。

Using bi-imaginary number representation, complex multiplication is simplified into two multiplication, instead of four ones in the previous method.

为克服空间带宽积的限制，提出了利用有限的外积乘法单元，通过矩阵分块和矢量循环流动进行任意维数矩阵与矢量运算算法，处理器利用率高。

On the basis of experimental research, this thesis applies 2-dimensional non-linear finite element method to the analysis of transient temperature field on the section by means of relatively high precision triangular element of six joints. When the temperature field is analyzed, finite element reseaus are divided in space field and finite difference reseaus are divided in time field, and then the program is compiled. The computing results are in good agreement with the test data. It indicates that the program is stable and precise.

在试验研究的基础上，本文采用精度较高的三角形六结点单元对构件截面二维非线性瞬态温度场进行了有限元分析，即在空间域内采用有限元网格划分，在时间域内采用有限差分网格划分，据此编制了计算程序，计算结果与试验数据符合较好，程序稳定性好，精度满足要求。

Baodingtransport facilities engineering limited liability company established in 1992, is a company engaged in the traffic of electronic security products and transport automation product design, research and development, production and installation in one of the private enterprises.

保定维特瑞交通设施工程有限责任公司成立于1992年，是一家从事交通电子安全产品及交通自动化产品的设计、研发、生产、安装于一体的民营企业。

At last, the error curve surface of gear profile is obtained by combining bending deformation and contact deformation.

文中首先将刀齿和轮齿抽象简化为力学模型，分析其受力状态，并运用三维有限单元法计算各节点的弯曲变形量，建立切削力与弯曲变形的关系。

Some closedforms of formulae are also obtained for the evaluation of the Cauchy prin-cipal integrals over quadratic boundary elements and linear internal cells of2-D problems.

通过采用以上各种技术成功地解决了三维弹塑性有限形变问题边界元法中最关键的数值积分的精度和效率问题。

Based on the theory of tidal flow and sediment motion, a 2-D depth-integrated mathematical model for the Jiaojiang Estuary is developed by using explicit scheme of finite difference on the triangle elements. The results show that the rotary currents occurring in this area can be simply and effectively simulated by the model. Meanwhile, the suspended sediment concentration simulated is in agreement with the field data.

本文根据椒江口实测水文地形资料，从平面二维水流泥沙基本方程和基本理论出发，采用三角单元有限差分法对水流泥沙方程显示求解，对椒江口潮流泥沙进行了数值模拟，模型简单实用，较好地再现了具有旋转潮波性质的椒江河口水流运动特征，含沙量场也得到了基本正确的反映。

If you are looking to purchase a house and your financing options are limited check out the Bad Credit Mortgage Nashville plans available to you.

如果你是看你买房子、融资方案是有限的不良信贷抵押查一查纳什维尔图供你。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。