索引

But the search engine available exist some limits including the depth of indexing,the possession of informtion,the pertinency factor and recall factor,the technology development,the retrieval function,the renewal of index database,etc.

由于受人为因素和技术因素的影响，目前搜索引擎存在信息标引深度不够、信息占有量不足、查准率低、查全率不高、技术发展不完善、检索功能不全、索引数据库更新困难、挤占网络带宽、分工协作不强等局限性。

"Rolodex" is the commercial name of a common in-dex system much used by busy executives.

"Rolodex"是一种普通索引系统的商标名称，通常被繁忙的管理人员所使用。

The next thing that we now need to do is to ensure that the user _id is unique by placing the p roper index on the user_id fie ld.

下一件我们现在需要做的事情是通过在 us er_id 域放置恰当的索引确保 user_id 是唯一的。

A positive and negative projection method of object to be tested based on universal pattern display card includes using 3D texture to present rebuilt body data of object to be tested, calculating out directional vector array of ray outgoing point to detectors, storing said vector array into pattern display card to form directional vector texture, rotating directional vector texture and directional vector around rotary shaft to realize once of positive projection course on any projective angle, using 3D texture index technique to let virtual slab set position be not limited any more in negative projection course.

本发明属于投影探测与成像技术领域，其特点在于该方法含有以下步骤：把被测物体的重建体数据用三维纹理存储表示；预先计算射线出射点至平面探测器上个探测器之间的方向向量数组，并存储到通用图形显示卡中形成方向向量纹理；利用方向向量纹理与方向向量绕旋转轴旋转来实现任一投影角度的正投影过程的一次完成，无中间结果转存；在反投影过程中，利用三维纹理索引技术使虚拟切片组的放置位置不再受到限制。

This paper proposes an encoding compression method, which is similar to a dictionary index. To compress test data, the data blocks which are compatible with the reference data blocks are marked by "1" in the proposed method. Its decompression architecture requires only a finite state machine and a cyclical scan register whose length is the same as that of the data block.

提出一种类似于字典索引的编码压缩方法，将与参考数据块相容的测试数据块用"1"标记来压缩测试数据，解压体系结构只需要一个有限状态机和一个与数据块等长的循环扫描移位寄存器。

Search engines, such as Google and Yahoo, scour the Web looking for new content to index.

搜索引擎，如Google和雅虎，冲刷网上寻找新的内容索引。

But now Google scours its indexes of the various types of information for each user query and sprinkles what it finds among the links to Web sites in its results.

现在，谷歌取消了在搜索结果中单独列出多种信息索引的做法，取而代之的是在搜索结果中随机加入各种形式的链接内容。

But now Google scours its indexes ofthevarioustypes of information for each user query and sprinkleswhatitfinds among the links to Web sites in its results.

现在，谷歌取消了在搜索结果中单独列出多种信息索引的做法，取而代之的是在搜索结果中随机加入各种形式的链接内容。

It harks back to the days of early writing when texts in a 14th-century scriptorium were difficult to locate since they lacked cataloguing, indexes, or tables of contents.

回到早期的书籍时代，在14世纪写字间里的书本是很难定位查找的，因为它们缺乏编目、没有索引或是目录。

This is a searchable index .

这是一个可搜索的索引。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷