查询词典 data base

Pairwise sequence alignment is one of common methods in analyzing sequence, which also is the base of multiple sequence alignment and data search.

双序列比对是序列分析常用的方法之一，也是多序列比对和数据库搜索的基础。

According to the data of Natality Statistics of Demographic Yearbook (2002) U. N., the author described and analyzed statistic characteristics and dynamic tendency of sex ratio at birth for different types of countries in the world recent two decades, which is to reflect the general pattern of SRB and provide the background and base for further recognizing ubnormal phenomenon of SRB in Chi

利用联合国《人口年鉴》出生统计专辑汇集的世界各国多年的人口出生数据，对全球不同类型国家近20年来人口出生性别比的统计特征和动态趋势进行描述和概括，以尝试着反映人类人口出生性别比的一般规律及特点，为更客观、准确地认识中国人口出生性别比失常提供背景与基础。

Data from the running nmbd server will be logged. The actual log file name isgenerated by appending the extension ".nmb" to the specified base name. For

用参数-l可以指定一个带路径的文件名用于nmbd服务器作为记录文件，并会在你给出的名

For case study, db4 optimum wavelet base is used to transform GR, SP and AC from a well in Shengtuo oilfield. By this transformation the logging data are expended from one dimensional depth space into two dimensional depth-scale space.

以胜坨油田某井为例，采用db4最佳小波基分别对自然伽马、自然电位和声波等测井曲线进行了多尺度分析，将一维测井数据拓展为二维深度－尺度空间，提取小波变换系数的时频色谱信息和能量信息，从而确定出测井曲线识别准层序界面的最佳尺度。

We should pull out platform of this base service, open to the outside world these technologies, do a few data and circuit .

我们要把这个基础服务平台拉出去，把这些技术对外开放，把一些数据和流程做起来。

The material job and main conclusion are as follows:(1) A simple boundary orthogonalization procedure independence grids generation method is put forward on the base of algebraic grid generation method; Data structure and computational model on interface are established aiming at blocks of structured grids.

本文针对粘流场数值模拟技术的研究现状和发展动态作了比较全面的回顾与展望，重点研究了网格生成技术、数值求解技术、湍流模型技术和动边界模拟技术，在此基础上建立了模拟自由面湍流场的数学模型，并成功地应用到二维溢流坝和带闸墩的三维溢流坝过坝水流的数值计算。

The material job and main conclusion are as follows:(1)A simple boundary orthogonalization procedure independence grids generation method is put forward on the base of algebraic grid generation method; Data structure and computational model on interface are established aiming at blocks of structured grids.(2) SIMPLE procedure is established in nonorthogonal grids by use of the finite volume method and in-depth discusses on special topic such as boundary condition in nonorthogonal grids, deferred correction method and grads compute on calculational nodes, and so on.

本文完成的具体工作和主要结论如下： 1以代数网格生成方法为基础提出了一种简单的、可独立于网格生成方法之外的边界正交化技术；针对分区结构网格系统建立了分区交界面处的数据结构与计算模型； 2利用有限体积方法在非正交同位网格系统中建立了SIMPLE求解算法，对非正交网格系统中的边界条件、延迟修正技术及计算节点的梯度计算等专题进行了深入讨论。

On the basic of above job a mathematical model of simulation turbulent flow with free surface is established and triumphantly applied to numerical computation on 2D spillway and 3D spillway with frusta of brake.The material job and main conclusion are as follows:(1)A simple boundary orthogonalization procedure independence grids generation method is put forward on the base of algebraic grid generation method; Data structure and computational model on interface are established aiming at blocks of structured grids.

本文针对粘流场数值模拟技术的研究现状和发展动态作了比较全面的回顾与展望，重点研究了网格生成技术、数值求解技术、湍流模型技术和动边界模拟技术，在此基础上建立了模拟自由面湍流场的数学模型，并成功地应用到二维溢流坝和带闸墩的三维溢流坝过坝水流的数值计算。

The distances estimation algorithm between object and base-stations is studied in detail, which provides pseudo-distance observation data for location object\'s status parament estimation.

深入研究了定位物体与定位基站的距离估计算法，为定位物体的位置、速度和姿态角等状态参数估计提供了伪距观测数据。

In this method, the result data from experimental test and modal parametric identification are used as reference base to refine the analytical model.

提出一种新的以试验振动测试和参数辨识的数据为参考，进行有限元分析模型修正的方法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。