离

The on-line system can obtain the latest search results while the search speed is low; The off-line system speeds the query processing by means of preprocessing, but the disadvantage lies in expensive cost needed to preprocess again once the database is updated.

关系数据库上的现有数据库关键词检索系统可分为在线和离线两大类，它们都难以兼顾查询效率和效果：在线系统能够获得数据库最新结果，但速度较慢；离线系统使用预处理提高查询速度，但若数据库更新就要重新执行预处理。

Now keyword search over relational database is becoming a hot research topic in both database and IR area. There are two kinds of popular keyword search systems, while neither of them can give accurate results with high speed. The on-line system can obtain the latest search results while the search speed is low; The off-line system speeds the query processing by means of preprocessing, but the disadvantage lies in expensive cost needed to preprocess again once the database is updated.

关系数据库上的关键词检索已成为数据库和信息检索领域的研究热点之一现有数据库关键词检索系统可分为在线和离线两大类，它们都难以兼顾查询效率和效果：在线系统能够获得数据库最新结果，但速度较慢；离线系统使用预处理提高查询速度，但若数据库更新就要重新执行预处理。

Single? Keep your message inbox open, but your mobile on discrete.

单身？让您的收件箱开放，但让您的小灵通讯号离离落落。

So far, almost all of vegetative and reproductive organs have been regenerated in vitro, which might be helpful to further understand the molecular mechanism of plant organogenesis.

迄今为止，包括营养器官和生殖器官在内的几乎所有的器官都可以在离体条件下得到再生，为深入研究植物离体器官发生的分子机理奠定了基础。

Conclusion∶OSR and SR can decrease heart rate of guinea pigs, inhibit the effect of isoprenaline on heart and enhance the automaticity of isolated heart atria

结论∶OSR和SR可减慢整体豚鼠的心率，对抗异丙肾的加快心率的作用；而在离体心肌，它们能够使肾上腺素诱发离体心房自律性的浓度降低，表现为加快心率的作用

These suggested that SOD and Se decreased the toxicity of the heart induced by Ouabain i...

本结果提示SOD和Se对离体心脏由哇巴因所诱发的心律失常有不同程度的对抗作用，推测自由基可能参与哇巴因致离体心脏的中毒过程。

Firstly, this paper expounds the advanced to search of outlier mining at home and abroad.

本文首先阐述了国内外在离群挖掘方面进行的研究及离群数据挖掘的主要应用领域；接着分析了海关进出口数据所具有的特点。

The process of the movement of overlying strata and surface is simulated factually.

根据关键层理论，分析了覆岩地层结构与离层的关系，探讨了覆岩离层发育过程的阶段性和周期性。

This surface works a bit like a giant radio telescope dish in reverse: Rather than focusing parallel astronomical light rays to a point, it collects the scattered plasmons emerging from a tiny sample--positioned strategically near the mirror--and redirects them into a plasmon "beam" in the metallic plane.

这个表面的工作原理相当于一个倒置的巨型射电望远镜的盘面，不同于天文望远镜把平行的天体光线会聚到一点，这一设计起到的作用是收集从一个位置恰好位于像点的微小样品散射出来的等离激元，并把他们重定向成金属平面上的一个等离激元束。

Secondly, in order to achieve the same capacity, the diamond-shaped in the world of points will have to carve the deeper, we will receive from the reference in the natural world, bees in cellular would be for the width of the parallelepiped, results in a xuetie, bio by instinct know, only this arrangement can store more fengbei.

其二，为了到达同样的容度，钻石不神的网穴不离得雕得更浅一些，差此，我们从自然界洋亦可得回鉴戒，蜜蜂的蜂窝不离是由六背体的宽穴所组不败，生物是凭着本能懂得，只有这栽摆列才能贮存更众的蜂密。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。