查询词典 data base key

In the end, the illation of the frame format of data frame, the formula of throughput, the block diagram of data frame's hardware realization with some analyses of key technology are provided.

最后，本文推导了DS-UWB数据分组的帧格式及吞吐量的计算公式，给出了硬件实现框图并对图中的关键部分加以分析。

The high-density optical data storage technologies based on short-wavelength laser source and solid immersion lens are studied with the aim to develop the key technologies of the two optical data storages system.

本课题主要围绕高密度光存储技术中的短波长光存储技术和固体浸没透镜超分辨存储技术展开研究，其目的在于掌握这两种高密度光存储系统中的关键技术。

Approximately duplicate records in data integration is one of the key problems affect the data quality.

相似重复记录是数据集成系统中影响数据质量的关键问题之一。

Deep researches on relative key technologies of image database, including partitioning, coding and index of image block, query and visualization of image data, image data compression and etc.

深入研究了影像数据库相关的一些关键技术：影像块的划分、编码与索引机制、影像数据的可视化与查询及影像数据库的数据压缩等。

Data mining and KDD are often used interchangeably because data mining is the key to the KDD process.

数据采集和KDD经常被交替使用，因为数据采集是KDD过程的关键。

The monthly reanalysis data set and the anal yzed precipitation data set are used to study the interannual variabili ty of Somali Jet and its influences on the interhemispheric water vapor t ransport and on the East Asian summer climate. It is indicated that SMJ plays a key role in the water vapor transport between the two hemispheres.

利用美国国家环境预报中心和美国国家大气科学研究中心再分析月平均气候资料以及Xie和Arkin分析的月平均降水资料（1968～199 8年），针对索马里低空急流的年际变化及其对东亚夏季降水的影响问题展开了分析研究。

The data of the intermediate frame is created according to the data of the key frame.

最后，总结全文并提出了HSCAE 冷却前处理系统尚需完善之处。

Reduced SQP based on orthonormal bases, orthogonal bases and coordinate bases are studied and compared. With the correction item introduced, the null-space move is adjusted and the reduced SQP based on coordinate bases decomposition is improved.●The key problem of steady-state data processing for RTOPT is studied. A new algorithm of simultaneous strategies for data reconciliation and gross error detection is proposed. Here the objective function that is constructed using maximum likelihood principle and joint distribution function is minimized. Efficient algorithm is developed which exploited the nonlinear lease-square structure of this objective function.

仿真结果表明了算法的有效性；●深入研究了在线优化中的一个关键问题——稳态数据处理问题，用基于组合概率分布的目标函数联立求解粗劣误差检测和数据调和问题；以精馏塔在线优化的数据处理和模型修正为例，提出一种根据模型方程对参数的依赖性进行过程模型分解的分层策略，可以将数据调和和参数估计统一在数据处理的大框架中，为进一步的过程性能分析、操作状况评价以及在线优化提供可靠的基准，具有非常重要的工程应用价值；●将优化命题的形式扩展到更通用的形式。

The aim of this study was to investigate the relationship between reclamation size and mud flat development size during different period of time. It was achieved by a combination of field surveys and the use of Landsat TM and ETM remote sensing satellite data of the past 20 years as the key data source.

此项研究以近20年来的Landsat TM和ETM遥感卫星数据为主要数据源，并结合实地景观调查，对不同时期的人类围垦面积和滩涂发育面积之间的关系进行探讨。

Key words parallel database, multidimensional data space, data hypercube placement

并行数据库，多维数据空间，数据超方体放置

We were cousins—his grandfather was King of Scots,and his great-grandfather was Henry VII of England.

我们是堂姐弟——他的祖父曾是苏格兰国王，他的曾祖父是英格兰的亨利二世。

I do want to help you, but I am in a quandary now!

我是想帮你，但是我现在左右为难啊！