查询词典 three-body problem

This paper study some third-order three-point generalized right focal boundary value problem.

本文研究一类三阶三点广义右焦点边值问题。

Think, it is necessary to solve this problem, it is necessary to the development of secondary and tertiary markets, so the stock room into two or three-tier market, transfers the real estate market needs of different levels.

张跃庆认为，有必要为解决这一问题，有必要制定二级和三级市场，因此股市房间分成两个或三个层次的市场，转让房地产市场需求的不同层次。

There are complications," a Yunnan Copper Group, insiders said yesterday, holding the three-tier executives, a subsidiary of the problem do exist, these are problems left over by history, is currently being resolved,"company executives have to note the Shenzhen Stock Exchange , To discuss matters relating to resume trading.

有并发症，&一云南铜业集团内部人士昨天说，举办三级管理人员，对这个问题的子公司存在，这些都是历史遗留问题，目前正在解决，&公司管理人员必须注意深圳证券交易所，讨论有关恢复交易。

The main contents are as follows:Firstly, starting with the general situation of soil erosion and the harms caused by it, the causes leading to the local soil erosion problem are analyzed comprehensively in the paper. And connecting with the measures taking place, sticking points towards the career of soil and water conservation are expatiated upon.Secondly, Back-Propagation Neural Network, One of Artificial Neural Network is used to set up a modal about the connection of the soil erosion modulus and seven factors impacts on it, such as, rainfall, rainfall largest intensity in 30 minutes, runoff coefficient, vegetation cover percent, rate of granule, rate of physical viscidity-clay, the rate of organic matter. Through the comparison with linear regression model, the second regression model, the Chinese Soil Loss Equation, it illustrated that BP Neural Network modal is more accurate than the other three modals in forecasting the mount of soil erosion, and the BP Neural Network will have some applicability in forecasting in soil erosion.

本文以霍山县作为皖西大别山区的典型区域，主要研究了以下内容：(1)从介绍霍山县土壤侵蚀状况以及所造成的危害入手，全面分析了导致当地土壤侵蚀发生的原因，并结合当地采取的水土保持相关措施，阐述了当地水土保持工作的症结所在；(2)结合上土市水土保持试验站多年实测资料和2005年实验资料，应用BP神经网络理论，建立了次降雨土壤侵蚀量与次降雨量、最大30min雨强、径流系数、植被覆盖度等因子之间关系的模型，并通过BP神经网络的预测模型与一次回归模型、二次回归模型、CSLE模型之间的对比分析，说明了建立的BP神经网络模型在土壤侵蚀预测可以取得较回归模型和CSLE模型更高的精度，也说明了BP神经网络理论在土壤侵蚀预报中具有一定的适用性。

Aiming at the problem in the existing voxelization algorithms, a block-based algorithm is presented: GPU clipping method is used to voxelize the surface in every block, and ray intersection method is adopted to generate seeds filling the inner/outer space of blocks; among blocks, three seed planes are designed to help seeds span the blocks, so that a great deal computation for intersection is avoided.

提出以分块为基础的高分辨率实体体素化算法：在分块内部，采用基于图形处理器(Graphics Processing Unit， GPU)的切面光栅法对分块表面体素化过程进行加速，采用射线求交方式生成种子并进行块内填充；在分块之间，设计了3方向的种子扩散面及跨块扩散机制，避免因分块而导致的大量几何求交运算，提高了效率。

The problem considered in this paper contains absorbing-emitting medium, absorption and emission of radiation not only exist on boundary of the system, but exist in the whole space fulled of medium, variation of temperature, pressure, density, compusure and property with coordinates must be considered in computation, so computation in this paper is based on three dimensional flow field.

本文所计算的问题包含吸收-发射性介质，能量的吸收和发射不仅发生在系统的边界上，而且还发生在充满介质的全部空间，在计算中要考虑介质中各点的温度、压力、浓度、成份以及物性在空间上的变化，因此本文的计算是根据三维流场计算的数据进行的。

In 1992, a three phase double circuit line between Goudey and Oakdale station was reconstructed to six-phase line and was operated commercially by New York state electric and gas. It is a milestone from theoretical research to practical application in the development of six-phase transmission.With the decrease of cultivated land and the environmental problem in china, it is an important factor to improve power transmission density in the construction of electric network, and the predominance of six-phase transmission is obvious in this aspect.

六相输电是多相输电的一种，在国外六相输电技术作为提高输电线路功率传输密度，节约线路走廊空间的重要手段得到了充分的重视，对六相输电技术的研究也取得了很大的进展。1992年，美国纽约电力和天然气公司将Goudey到Oakdale之间的一条双回线路改造成了六相输电线，并且已经投入了商业运行，这标志着多相输电技术已经从理论研究向实际应用迈出了重要的一步。

In trying to maintain standards, English universities face a particular problem (the Scottish system is different). Their standard short, specialised degrees suit only the well prepared: in three years there is no time for a ruthless weeding-out after one year, as is common elsewhere in Europe, or for a broad education before choosing a major subject, as in America.

为了保证水准，英格兰地区的高校面临着一个特别的问题（苏格兰地区高校教学体系与之不同）：它所提供的标准化、短平快专业学位只适合那些已经有良好基础的学生；三年时间对于那种在欧洲通行的做法——先在第一年里严格筛选，最后决定主攻学科——实在不够，对于如美国的做法——在学生选定主攻科目之前先对其进行通识教育——也十分不够用。

During routing convergence, traffic could be forwarded using this table, so as to solve the problem of traffic stoppage , and enhance network's self-cure ability.this paper gave a load balance forwarding algorithm for the multi-hop routing mechanism.it contained three parts: selecting the candidate next hop muster, the mapping of traffic splitting, dynamic adaptation based on over-loading link.

在路由收敛期间，数据通过多下一跳转发表转发，从而解决断流问题，提高网络的自愈能力。提出了一种多下一跳路由机制下的负载均衡转发算法。该算法包括三个部分，即选择候选下一跳集、数据流分配映射和基于过载链路的反馈式动态调整。

In NWFM,to solve self-consistently the set of DFT Kohn-Sham equations,nuclear weight function is employed for numerical solution of multicenter integra-tion,which decomposes the problem of three dimensional integration to a sum ofone-center,atomic-like integrations.

首先介绍如何利用线性组合的原子轨道方法求解密度泛函理论中的K-S方程；接着详细地说明了核权重函数的概念，并列出了两种常用的核权重函数形式，同时阐述了如何利用核权重函数求解包含多中心积分的矩阵元以及复杂的三维泊松方程以获得电子间库仑势的方法；然后给出了求解矩阵元、有效势以及体系总能的具体数值计算公式。

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。