查询词典 retrieval

The key factor affecting the efficiency of the application of image database is image retrieval.

医学图像检索是决定医学图像利用效率的关键因素。

The use of electronic mail implementation document storage and retrieval.

利用电子邮箱实现文件的存储和提取。

Emissivity is a very important factor in thermodynamic temperature retrieval and energy balance research.

比辐射率是热红外地表真实温度反演，能量平衡等研究的关键参数。

The method is evaluated on the Encarta encyclopedia, and shows that it provides more accurate and shorter answers than traditional document retrieval for queries.

该方法结合文本内容和结构信息，为XML文件设计了增强的索引结构，同时，改进了传统的排序方法和检索方案，提高了查询的精度和查询结果的合理性。

Proficiency in knowledge and application of PC (data entry and retrieval, word processing, instrument/computer interface, etc).

熟悉PC机的知识和应用（数据录入和检索，文字处理，文书/计算机接口等

In the method, the equation of vorticity is simplified and combined with the definitions of vorticity and divergence , and then restrained by the equation of continuity to set the system of retrieval equations. Three-dimensional wind vector, vorticity and divergence can be got by solving the system of equations. Preliminary test has proved that it is feasible.

该方法从动力学角度出发，将柱坐标中的垂直涡度方程适当简化后，联系涡度散度的定义式，再以大气连续方程作约束，得到一个反演方程组，求解方程组就可得到不同高度层上的三维风场以及涡度、散度，初步检验证明其是可行的。

Land surface emissivity is an essential parameter for land surface temperature retrieval from thermal remote sensing data.

地表比辐射率是用热红外波段遥感数据反演地表温度的关键参数。

Be based on the above algorithm, we develop the image retrieval system to prove its validity and exactness.

基于以上的算法，我们开发出了图像检索系统来验证其有效性和正确性。

This thesis expatiate the content-based image retrieval system and a number of relevant technical.

本文研究了基于内容的图象检索系统和技术的若干有关问题。

The film or movie is the most popular and common video resource. In this paper we use the film video as an example, aims to implement real-time retrieve of explosion and shot scenes, has carried on the following research mainly: first, we proposed a method of real-time recognition of explosions based on dominate-color and audio information and improved the accuracy the retrieve;second, we proposed a method of real-time retrieve of shots scenes based on audio information and differences between frames when the shot occurs;third,a whole video abstraction system is proposed, it can cut off the clips which have been retrieved and merge them into a independent video abstraction in the same time edit the information of the it ;forth, it offers two-level retrieval structure of"key frame-highlights"and can play segmentation result and the whole video just like a video player.

电影或电视剧视频是人们日常生活中最喜闻乐见也是最常见的视频内容，本课题以此类视频为研究素材，目的是实现实时爆炸和枪击场景的检测，主要进行了以下几个方面的研究：1针对视频中爆炸场景的主色和音频特点，提出了一种基于声像特征的实时爆炸场景检测算法；2捕捉视频中枪击事件瞬间的帧间变化信息和相应音频信息，提出了一种基于声像特征的实时枪击场景检测算法；3从原始视频中切割检索到的精彩视频场景合并成单独精彩缩略视频，并可进行相关信息编辑，形成比较完备的视频摘要系统；4形成关键帧-精彩视频场景的二级浏览结构，可对分割结果或整个视频片断进行播放，基本实现播放器的功能。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。