优

In addition, it establishes math model about the best benefit in condition of different crop with different condition. Making computer analogue test with the example of Guantao county in Handan, the result shows that it reaches the goal of exploiting and using water resource reasonability by adjusting the agriculture pattern of plant and other related measure, through which the rainfall resource can be self-balance satisfy every agricultural need in one district in one year or many years.

另外建立了不同条件下种植不同作物获取最优效益的数学模型，以邯郸馆陶县为实例进行了计算机模拟计算，输出结果分析说明通过种植结构调整等相关工程措施达到了合理开发利用水资源的目的，最终确定适当的工程措施和农业种植结构，使研究区内的雨水资源量达到年内或多年的自平衡的灌溉模式。

Based on the range analysis and variance analysis of the orthogonal experiment, three potential optimal projects were obtained.

通过对正交试验的实验结果的直接观察，极差分析和方差分析，获得了三个可能的最优方案。

The linear system optimum control theory distributes one of parameter systembasic topics,in domains and so on aerospace,national defense,finance,communicationhas the widespread application prospect.simultaneously, because the research tech-nique involves to foundation mathematics theories and so on the functional analysis,analysis situs,geometry, algebra.

线性系统的最优控制理论是分布参数系统的基本课题之一，在航空航天、国防、金融、通讯等领域有着广泛的应用前景。同时，由于研究手法涉及到泛函分析、拓扑学、几何学、代数学等基础数学理论。

In this model, the weight coefficient method and priority analytical hierarchy process were introduced to obtain the optimal solution.

在建立多目标线性规划的数学模型中，引进了权系数法和优先层次法，并综合两者的特点以使模型的解能达到最优。

Based on the Analytical Hierarchy Process, the optimal treatment processes are selected from the aspects of economy, management and technology.

利用所建立的层次分析模型，从经济、管理因素和技术指标等多方面，确定了适合天津水源条件的较优组合工艺，为水处理系统的调度提供依据。

We propose experimentally feasible schemes to implement the optimal asymmetric economical 1→2 and 1→3 phase-covariant cloning,which work without ancilla,in the context of ion-trap system.

我们提出利用离子阱技术来实现1→2和1→3的最优非对称经济型相位协变克隆的实验可行性方案。

Laser Doppler Anemometry was used to measure the velocity in volute and impeller of the pump. Three velocity components magnitudes were obtained, so was the mean square root fluctuating value.

运用激光多普勒测速仪，对旋流泵最优工况下的无叶腔及叶轮内部速度场进行了测量，得到周向速度、轴向速度、径向速度及其对应的均方根脉动速度分布等。

This paper solved the optimum installed angle anchor bar in anchored joint by considering the shear dilatatility of joint and utlizing the Mises yield criterion.

本文根据基本理论分析，考虑节理的剪胀效应并利用 Mises屈服准则求解得出了加锚节理面抗剪的最优安装角。

In this paper, based on the specific CNG engine parameters and characteristics, the influence of the injection timing, ignition energy and lean combustion for the engine is tested, in order to explore the control rules of fuel injection, ignition energy and lean combustion and then draw the following conclusions: small injection advance angle of electronic controlled injection CNG engine is optimum

文章根据天然气发动机的具体参数和特性，探索电控喷射CNG发动机在燃料喷射、点火能量和稀燃等方面的控制规律，确定最优的控制参数，开展了喷射定时、点火能量及稀薄燃料等参数对发动机性能影响的试验研究工作，并根据试验结果分析，得出了以下结论：电控喷射WT615CNG发动机燃料喷射提前角要小些为宜

First, the phenomenon of the projectile-retarded mechanism of moving plates is introduced, the conditions of the projectile-retarded mechanism of moving plates is analyzed. By a number of numerical simulations, the residual length and residual velocity of the rod which penetrate the fixed plate is contrasted with those of the moving plate. Under the different velocity of moving plate, the relationship between the effect of the projectile-retarded moving plates with thickness and intersection angle of the projectile-retarded moving plates is achieved, and the most optimal thickness and intersection angle is gotten.

首先介绍了运动板抗弹作用的现象，分析了产生运动板抗弹作用的条件，利用数值计算的方法，对比了长杆侵彻固定靶板和运动靶板后长杆的剩余长度和剩余速度，分析了不同的运动板速度条件下产生运动板作用的条件，得出了运动板抗弹效果与靶板厚度和夹角的关系，得到了产生运动板抗弹作用的最优靶板厚度和夹角。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。