查询词典 basic research

Primary research involves classification of ecosystem types and basic evaluation units; development of a map of ecotypes; measurement of biomass, productivity and crosion and analysis of the pattern of space structures in landscape units.

主要研究内容包括：生态系统类型及评价单元的划分；生态类型图的编制；生物量生产力和水土流失状况的测定；以及景观单元的空间结构格局分析等。

This website provides basic information about the center , including its research, services, and professional educations etc.

该网站提供该中心的基本信息，包括其研究，服务，职业教育等方面内容。

We point out that the influence of British economy upon the moving of elitists in various phase of the laboratory is different. Needs of the British economy had effect on the choice of the main subjects of the laboratory. Economy is the technological and physical basic of means of the scientific research.

指出各个时期英国经济对卡文迪什实验室优秀人才流动的影响是不同的；英国经济的需求影响了实验室主要课题的选择；英国经济是实验室研究手段的技术基础和物质条件。

Two methods are used in this paper to analysis the flight dynamic performance for UAV without empennage by qualitative and quantitative analysis. One is calculating two longitudinal modes by linearizing the basic motion equations. The other is three-dimensional flight simulation research with complete motion equations.

文章主要运用了基本运动方程线化进行基本模态计算分析和建立全量方程进行三维虚拟飞行仿真研究两种方法来定量与定性的分析与评估无尾式无人机的飞行动力学特性。

These research achievements promote the development of basic theories of emulsions and expand the application fields of emulsions.

这些研究成果促进了乳液基础理论的发展，并且拓展了乳液的应用范围。

These research achievements promote the development of basic theories of emulsions and expand the application fields of emulsions. Contents

这些研究成果促进了乳液基础理论的发展，并且拓展了乳液的应用范围。

From the result of research we can know the theory of TCM is confirmed in low level and decomposed, and lack of penetrating exploration and philosophical summarization on intrinsic rule of basic theory of TCM. The thinking of TCM is lack of innovation. This is exist that to pursue new technology and index ex parte.

从研究结果来看，多为低层次印证或分解中医理论，缺少对中医基础理论固有规律的深入探索与哲学高度上的概括，中医药学术思想创新不足，片面追求新技术及新技术指标应用不当的倾向严重存在。

On the basis of summarizing separation method of acetic acid-water system, we studied the azeotropic distillation process of acetic acid-water system, selecting butyl acetate, isobutyl acetate and isopropyl acetate as entrainers. The influence of packing height, ratio of water to entrainer and acetic acid initial concentration to separation effect of azeotropic distillation was studied in detail. Simulation calculations of general distillation and azeotropic distillation were carried out. The influence of reflux ratio, theoretical plate, feed position, feed temperature and feed concentration to distillation process were discussed. Preferred process operation parameter, which had guiding meaning to practical production of distillation process were obtained. Basic data for the process amplifying design of azeotropic distillation tower were provided. Invest and operation energy consumption of two distillation methods were compared. The elementary technical design of azeotropic distillation tower was carried out on the basis of result of simulation calculation. The type of major auxiliary equipments and inner parts of packed tower were selected.The research results are as follows:(1) Butyl acetate, isobutyl acetate and isopropyl acetate could be selected as entrainer, and separation effect was near.

本文在综述醋酸-水体系分离方法的基础上，以醋酸丁酯、醋酸异丁酯、醋酸异丙酯为挟带剂，对醋酸水溶液进行共沸精馏过程研究，详细研究了填料高度、水与挟带剂的配比、醋酸初始浓度等对共沸精馏分离效果的影响；对醋酸-水体系进行普通精馏和共沸精馏过程模拟计算，讨论了回流比、理论板、进料位置、进料温度和浓度对精馏过程的影响，获得了对醋酸-水体系精馏过程实际生产具有指导意义的较佳的工艺操作参数、共沸精馏塔的工艺设计放大的基础数据，并对两种精馏方法的投资、操作能耗进行了比较；同时在共沸精馏模拟计算的基础上进行了共沸精馏塔的初步工艺设计计算，并对填料塔的主要辅助设备及塔内件进行了初步选型。

Combined system simulation with optimal control, selected a typical water cooled primary/secondary chilled water system, used the research achievements of Annex 30 in IEA for the reference, this work firstly presents both the basic component models and the control system component models. Secondly gives the main models for parameter identification and experiment validation. Finally a dynamic digital simulator is set up using TRNSYS as the platform to substitute a real system to test and evaluate some kinds of online optimal supervisory control strategies after giving some essential data file input and finishing all the PID controllers'tuning.

本文将空调系统的仿真模拟与优化控制相结合，首先选择比较典型的水冷式二级泵集中空调系统，在国际能源组织IEA第30子课题Annex 30多年研究成果的基础上，建立了系统各设备的部件模型和控制系统部件模型，对主要模型参数的辨识方法进行分析，同时对其准确性给予验证；在此基础上，建立了以TRNSYS为仿真平台的集中空调水系统数字仿真器；通过必备数据文件的输入和对所有下位机控制回路PID参数的调试，最终完成可用于评估各种上位机优化控制方案的空调水系统数字仿真器。

Fire design was a basic step in subway fire research, because fire scenario can affect on the study of smoke movement and safety evacuation in the subway.

火灾场景设计是开展地铁火灾研究的基础环节，它对地铁内的烟气运动和人员疏散有重要的影响。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。