查询词典 three-body problem

Due to the mobile sensor is expensive and moving will consume a lot of energy. We used a small part of mobile sensor and most part of static sensors to meet the demand of k-coverage of three-dimensional network, and we have analysis the ratio of them is 1/(2πk^1/2. To achieve k-coverage, we have received the maximum moving distance for mobile sensor is O(log^1/3 in a network with a size of L . At last, we established a mathematical mobility model for mobile sensors, and converted the sensor redeployment for k-coverage into maximum network flow problem, and proposed a distributed relocation algorithm and verified it through experiment simulation.

考虑移动传感器移动会大量消耗能量，且比较昂贵，使用小部分的移动传感器和大部分静止传感器来满足网络k-覆盖的密度需求，且分析了其密度之比为1/(2πk^1/2；并证明了网络要达到k-覆盖传感器需移动的最大距离为O(log^1/3；建立传感器移动数学模型，将传感器重新部署问题转化为最大网络流问题，提出分布式重新部署算法并实验仿真证明其有效性。

In order to solve the problem that patient's treatment time and intensity is different, we use four LED nixie light dynamic demonstration to demonstrate the treatment time, It has three pressed keys, two pressed keys are used for controlling the treatment time's addition and subtraction, one for the treatment intensity and one used for treatment meter's height level cut.

为了解决治疗强度和治疗时间的问题，我们采用了四位LED数码管动态显示治疗时间，并设置了三个按键，一个用来控制治疗强度，也就是控制激光发射头高低电平的切换，两个按键用来控制治疗时间的加减。

Based on the single-axis air-bearing test bed, three experiment schemes are creatively designed for investigating the behaviors of rigid-flexible coupling dynamics:(1) experiment scheme for structural dynamics problem under a non-inertial frame,(2) experiment scheme for rigid-flexible coupling dynamics with unknown large overall motions,(3) experiment scheme for modal analysis of a typical rigid-flexible coupling system.

为了能更深入地揭示刚柔耦合动力学特性与验证本文提出的一次近似模型的正确性，最后重点介绍了我们在单轴气浮台动力学仿真实验平台基础上，经过多次探索和总结，创造性地设计的三套刚柔耦合动力学实验方案：(1)非惯性系下结构动力学问题的实验研究方案，(2)大范围运动为自由的刚柔耦合动力学问题的实验研究方案，(3)刚柔耦合系统模态分析实验方案。这三套方案从实验的角度来讲是可行的，这为下一步的实验工作打下了基础。

In chapter three, firstly the author analyzes the conditions of norm, which includes being together, common sense and authority; secondly he analyzes the function and form of norm. After that is the relation between intercourse and norm, the trait of modern norm and a series of disorder in modern intercourse that includes science and technology losing the care on man, value points being in crisis and the problem of countries' legitimacy.

第三章首先分析了规范得以产生的三个条件，即共在、共识和权威，并对规范的功能和表现形式进行了阐述，随之论证现代交往中交往与规范的关系和现代规范的特征，认为现代交往中存在着科学技术失去人文关怀、人文价值观失落、国家合法性危机等失范现象。

The problem of set partitions in combinatorial mathematics is conside-red, and the following three points are emphasized:(1) the non-recursivealgorithm for computing the number of partitions of an N-Set, P;(2)the algorithm for mapping the partition vector V to the partition sequencenumber D;(3) the algorithm for mapping the partition sequence number Dto the partition vector V.

本文对组合数学中的集合划分问题进行了一些探索，试图回答下面三个问题：①集合划分方法数P的非递归算法，②划分向量V映射到划分序号D的算法，③划分序号D映射到划分向量V的算法。本文以划分的构造树为基础，加以变换，得到数目树和分块树，由此求得P，以及K块划分方法数P_K。

If plants in the solution oblique triangle usually is unifies with three jiao functions carries on the simplification, perhaps the actual problem, the physical question's form appears, examination mathematics modelling ability.

如在解斜三角形种通常是与三角函数结合起来进行化简，或是实际问题、物理问题的形式出现，考查数学建模能力。

Based on image we study the tool path generation technology and problem of tool path planning. We put forward an algorithm for self-discrimination of island relation and an automatic intersected method of the region machining unit, which can judge the relationship among any plane obturate contour line effectively and swiftly. We also study the tool path generation technology of two-dimensional machining, basso-relievo machining, three-dimensional lifting-pen machining. Meanwhile, we put forward an optimize approach of tool path, which improve the efficiency of engraving.

研究了图像的刀具路径生成技术与轨迹规划问题，提出了基于射线的岛屿关系自动判断和区域加工单元的自动分割方法，有效、快速地判断了平面任意封闭轮廓线之间的关系，研究了平面任意区域填充加工、浮雕加工、三维提笔加工的刀具路径生成的技术，提出了刀具路径优化方法，提高了雕刻加工的质量和效率。

The equation of one dimensional mathematical model i human lung is built. The study is transformed from three-dimensional space one dimensional problem. This paper is base on the test of single breath washout. According the law of Pick and convction-difussion, we have t equation of one dimensional mathematical model.

论文以一次深呼吸氮清洗实验为研究基础，根据Fick定律和扩散对流定律得出一维一层喇叭口模型内气体传输和扩散方程，计算得出的模拟结果肺泡高坡区为一条水平直线，也没有明显的第Ⅳ区域。

The problem of protein folding is to predict the protein three-dimensional structure from its one-dimensional structure.

蛋白质的折叠问题就是通过蛋白质的一级结构来预测蛋白质的三维结构。

At last, we talked about three problem in precise orbit determination of lunar satellite.

最后一章讨论月球卫星精密定轨中的三个问题。

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。