深入研究

In the current study it is difficult to be certain that the decreased aortic distensibility in aortic dissection were due to structural changes of the aortic wall, or simply reflected dilated aortic dimension and aortic valve regurgitation. Further study is necessary to elucidate the underlying mechanisms for this abnormalities.

本研究用无创的超声技术证明主动脉夹层之升主动脉扩张性明显降低，这对主动脉夹层病因学的进一步深入研究无疑具有重要意义；但其降低是由于血管本身结构异常所致还是继发于血管内径的扩张尚有待进一步深入研究。

However,below-ground biological interactions that are driven by root exudates are more complex th...

本文在简要综述前人研究的基础上，深入探讨了化感植物根际生物学问题及攻克途径，以期为深入研究植物化感作用提供依据。

On one hand this text proceeds from technology of IDS, start with from studying the development of IDS and technological principle, can realize to one a concrete one honeypot inveigle IDS model of function further investigate; Study Honeynet system and key technology deeply on the other hand, excavate technology of the data to introduce the honeyed pot system at the same time , have optimized and strengthened the function of IDS system.

本文一方面从IDS的技术出发，研究IDS的发展和技术原理进而对一个具体的可实现蜜罐数据反馈和联动的IDS模型进行深入研究；另一方面深入地研究Honeynet系统及其核心技术，同时将数据挖掘技术引入蜜罐系统，优化和加强了蜜罐的数据价值并为IDS系统提供

Ring-shaped structure as a kind of indication information has very important significance and value to ore exploration.

环形构造作为一种指示信息对找矿具有非常重要的意义和价值，借助于卫星遥感影像对研究区的环形构造信息进行了深入探讨与研究，首先对该区的环形构造信息进行了遥感解译，通过环形构造的影像特征及其与矿点的产出关系来探讨环形构造的控矿特性，并进一步分析其与成矿的内在成因，最后基于深入研究的基础之上，提出了充分利用卫星遥感影像环形构造信息展开矿产资源勘探的思路和策略。

Because the limited time period of this study, to investigate the long term effects of row space and crop density on reducing soil evaporation are necessary in the future.

由于这次研究的期间较短，对行距、多播等项目的研究尚不够深入，有必要在今后的工作中进一步探讨。同时，对哪种秸秆可以避免降低冬小麦地温的问题进行深入研究，具有重要的现实意义，如果能解决好这个问题，则不仅有利于秸秆覆盖的大面积推广，而且能达到在使作物增产的同时减少土壤蒸发的目的。

The traditional query tree optimization methods,parallel database optimization methods based on left linear trees and right linear trees,bushy trees,and operation of the forest,have their own pros and cons,they have been more in-depth and maturity of the study.The query optimization method based on multiple weighted tree has studied its model of parallel query plan,its complexity model of parallel query plan and query optimization algorithms.The semantic query method transforms an inquiry into one or several semantic equivalence inquiries then has to find and implement a strategy to achieve a better query.Agent-based parallel database query optimization using Multi-Agent technology to automatically search the integrity constraint conditions which are related to the determined query,there for,the efficiency between several relations' joins has been greatly improved.The parallel optimization algorithm,based on genetic algorithm which is suitable for multi-joins of cluster environment,has deeply studied the relations storage options,multi-joins query optimization and query processing and other key technologies based on cluster parallel database.

传统的查询树优化方法，即基于左线性树、右线性树、浓密树、操作森林的并行数据库查询优化方法，各有优劣，对其的研究比较深入、成熟；基于多重加权树的查询优化方法，研究了其并行查询计划模型、并行查询计划的复杂性模型和查询优化算法；语义查询优化方法将一个查询变换成一个或数个语义等价的查询，进而寻找并执行这些等价查询中具有较好实现策略的一个；基于Agent的并行数据库查询优化采用Multi-Agent技术自动查找与给定查询有关的完整性约束条件，使得多个关系间连接操作的效率得到很大的提高；基于遗传算法的并行优化算法，深入研究了基于机群并行数据库中关系存储的选择、多连接查询优化和查询处理等关键技术。

The electric control system of theodolite and tracking sensors' characteristics is investigated deep. Based on these characteristics and data fusion structure theory, the data fusion structure in the theodolite system is advanced. The theory method of multi-sensor data fusion is studied deep. And more, the estimate theory of data fusion is applied concretely to the theodolite with the aim of prognosticating the object state.

本文首次提出了将多传感器数据融合技术应用到光电经纬仪系统中，在深入研究光电经纬仪电控系统和跟踪传感器特性基础上，并结合数据融合结构理论，提出了光电经纬仪跟踪测量系统数据融合结构；深入研究了多传感器数据融合的理论方法，并实验研究了数据融合的估计理论在光电经纬仪中的应用，目的是实现对目标状态的预测。

Moreover, the high frequency radio can also be used in the optical label switching. The subcarrier multiplexing optical label and optical carrier suppression and separation optical label are based on modulating lightwave by radio, which were studied much and maybe have a good future.

另外，在光标记交换领域，利用高频的无线信号调制光波实现的副载波光标记和光载波抑制光标记现已有一些研究，这两种标记实现方案有很好的应用前景，但还有一些问题需要深入研究，本论文对SCM光标记信号的传输距离受限问题和OCSS光标记分组的全光波长变换问题进行了深入研究，并得到了一些有价值的结论。

The second chapter mainly discusses Legge\'s point of view and its significance in the historical debate.

这是他深入研究中国经典的肇始，促使他广泛、深入地钻研儒家经典；他在这次辩论中所发表的文章初步显示了他在比较宗教的研究和传教中采取以耶附儒、适应性策略的努力，也是我们继续探讨他的汉学研究的一个切入点。

This essay reconsiders the problems of the national strategy of managing electronic records from the aspects below: the severances of the problems in electronic records, introspection after comparing with situation offshore, new technology in informationalization —Grid and the practice of scientific research.

最近，浙江大学的解俞、傅荣校对1995至200410年间的档案学研究提出了自己的看法，认为&深入研究不多，或者有些深入研究，但显得'单兵突进'，和者甚寡&。&因而，一个新问题的提出，我们不应该抱着看热闹、观望的态度&。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。