最大值的

Inthe first section,under the non-convex case we are devoted to investigate an optimalcontrol problem for a class of semilinear elliptic type equations which admit exactly twosolutions.By analyzing the property of a soltuion of the state equation and establishing the proper energy estimate,we prove the relaxed control method is fit for our problemand gain the Pontryagin\'s maximum principle.

第一节，在非凸情形下我们致力于一类只有两个解的半线性椭圆型方程的最优控制问题，通过对状态方程解性质的分析并建立适当的能量估计，我们证明了松弛控制方法对本问题的适用性并得到了最优对的Pontryagin\'s最大值原理。

Keep water level between minimum and maximum for Skull Fogger to work properly .

保存最小量和最大值之间的水平线让颅骨的喷雾能正常进行。

There isn't evident distinction indifference region, on the maximum intensity of typhoon torrential rain; in averageintensity, some areas of North China and south of Northeast China are generallyhigher than South China or East China.

台风暴雨强度在最大值上没有太大的地域差别；在平均强度方面，华北和东北南部的一些地区反而普遍较华南、华东地区为高。

An extremely high temperature of anode humidification is also unreasonable; as a result, when the current density is high, the liquid water should be injected directly into anode gas channel to guarantee both high inlet H〓 concentration and well-humidified membrane. 4. The utilization of Pt in the cathode catalyst layer will decrease with the increasing current density; as a result, based on the principle of maximal Pt utilization, the catalyst layer can be designed much thinner or not uniformly in the catalyst distribution.

而在此截面上，交指型流场燃料电池阳极侧的液态水饱和度的极值位置并不确定；在电池阴极处，液态水饱和度的极值总是出现在z=0.002m处的气体扩散层和膜的界面上，并且该处的液态水饱和度沿x方向存在一个最大值，与此相应的氧气的质量浓度分数在该处达到极小值，因此极限电流密度将首相出现该处，但总体来说液态水饱和度沿x方向的分布较为均匀。4。

In Chapter 1, we formulate the optimal control problem, and provide a history remark of the study of maximum principle.

在第一章中，我们给出了所研究的最优控制问题，并对最大值原理的研究历史做了一些回顾。

Theoretically, this essay introduces another method for optimum control, named the maximum value principle.

本文从理论上阐述了解决最优控制问题的另外一种更先进的方法－最大值原理法。

In the horizontally distribution, root dry weight decreased gradually from the root center to outer space.

根系达到干重最大值后的下降过程均以高密处理的下降速度最快。

Based on the above study, a program is developed which calculate the modeled subgrid stresses, and is applied to simulate the turbulent flow in a plane channel. The computational result is compared with the data extracted form a DNS database, and the agreement is satisfactory. A numbers of physical phenomenon has been reproduced in the simulation, including hairpin vortex and counter-rotating rolls in near wall region, intermittent vortex structure, the maximum of pressure clustering in wall area and the high-speed fluid sweep into the low speed fluid, and the ability of the LES to simulate turbulent flow is well shown.

在对LES技术学习掌握的基础上，编制了亚网格模型的计算程序，在三维平板通道流动的具体计算中应用大涡模拟技术，并与DNS计算结果进行了比较，得到了满意的结果，三维通道中的重要流动现象被很好的预示出来，包括近壁面的发卡涡，对旋涡，间歇猝发涡结构，压力最大值向壁面的倾斜，高速流体对近壁面流体的下扫，卷掠等，显示了大涡模拟技术对湍流流动模拟的能力。

The results show that, with the same steel consumption, the longitudinal and transverse girder deck scheme is a little better in stiffness, dynamic characteristics and stability than those of the other scheme's. For the dense transverse girder deck scheme, because of no longitudinal beams, the axial forces of the tie beam and the deck slab are higher than those of the other scheme's. The improving rate of the axial force for the deck slab is about 50%. The inside and outside bending moments of the cross beams reduce to below half of the other scheme's. The longitudinal stress of the deck slab is higher on the whole and the traverse stress is less than that of the other scheme's. The maximum traverse stress of the deck slab is below 40% of the other scheme's.

研究结果表明：在材料用量相同时，纵横梁方案桥梁刚度较密布横梁方案的桥梁刚度稍大，桥梁动力特性比后者的优，其稳定性也比后者的强；对于密布横梁方案，由于不设纵梁，系梁和混凝土板承受的纵向力都较纵横梁方案的大，混凝土板增幅达50%左右，横梁面内和面外弯矩则明显减小，都低于纵横梁方案的一半，混凝土板顺桥向应力整体比纵横梁方案的高，而横桥向应力则较低，最大值低于纵横梁方案的40%。

With these age referenced ranges, a physician in the specialty can also titrate the dose of human growth hormone to reach it optimal level in the patient ( that of a 20 year old healthy Chinese ).

从而我们可以判定这个被检查的病人是健康（胰岛素样生长因子-Ⅰ的水平处于正常范围）、不健康（胰岛素样生长因子-Ⅰ的水平低于其年龄所对应的参考范围），还是可能有肿瘤或疾病（胰岛素样生长因子-Ⅰ的水平值高于其年龄所对应的正常范围最大值）。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷