查询词典 field survey

As a most commonly used method of urban vegetation investigation, stratified random selection investigation is the topic of this paper. Based on enormous publications and practical experiences, the authors proposed the systematic processes of investigation planning, with the details and points of attention for field work of urban vegetation survey introduced. The main body of urban vegetation investigation was divided into three parts, i.

本文以大量文献和作者在城市植物调查的实践经验为基础，总结了国内外城市植物研究中常用的分层随机抽样调查方法，并对植物分层随机抽样调查方案设计的步骤、方法及注意事项作了系统总结并提出相关建议，综述性归纳了一套城市植物分层随机抽样调查的方案设计方法。

A review of river management history in various countries is used in this thesis to discuss the future development trends of river management and the relationship between river health and river management.Based on the characterization and assessment of river health, Five components of stream condition are presented in this thesis to characterize river health: water quality, aquatic life, physical form, hydrology and streamside zone. It is obtained by comparing the methods and criteria that have been developed by others and reviewing the river assessment practices in various countries. Accounting for the features of urbanization region in plain river network, an indicator system for river health assessment which provides scores for 5 subindices and 17 indicators is established. With almost 200 stream reaches in Shanghai as objective of study and Liwa stream and Zhangjiabang Creek as case study, the application of river health assessment in the planning, baseline survey and post-project appraisal of river management is explored by collecting historical literature and field monitoring. Consequently, some suggestions to improve river management effectiveness are presented from the angle of river health.

本文回顾河流管理漫长历程并指出当前国际发展趋势，进而辨析河流健康状况与河流管理的关系；以河流健康状况的表征和评价为核心，通过对国外RIVPACS、AUSRIVAS、IBI、RCE、ISC等河流健康状况评价方法的分析和比较，以及对美国、英国、澳大利亚、南非等国家河流健康状况评价实践的总结，尝试从理化参数、生物指标、形态结构、水文特征、河岸带状况5个方面全面表征河流健康状况；结合中国东部平原河网地区自身特点，通过评价原则、评价指标、评价标准、评价权重确定等步骤，初步构建了包含河流水文、河流形态、河岸带状况、河流水质以及河流生物5个一级指标(共17个指标)的河流健康状况评价指标体系；在此基础上，采用资料收集与现场实测相结合的方法，以上海近200条中心河道为研究对象，以丽娃河和张家浜为典型案例，分别就河流健康状况在河流管理规划、现状评估以及后评估中的应用进行实证研究，并尝试探讨如何从这三个阶段利用河流健康状况评估改进河流管理的对策。

This survey course is designed to give students an overview of several different research areas in the field of neuroscience.

此一课程提供学生在神经科学领域中各种不同研究取向的概观。

The English-speaking countries' survey course is for the purpose of helping the students to expand their knowledge field of vision,and to strengthen their English language utilization.

任何一个国家的文化内涵都反映在其语言之中，语言与文化有密切的联系，英语教学是语言教学，自然也离不开其文化内涵。

In the next 12 weeks, we will survey the major theoretical approaches and empirical research in the field of political behavior (though we will only tangentially discuss political participation and voting).

在接下来的十二个星期内，我们会检视政治行为范畴中主要的理论方法和经验研究（但我们只会略为讨论政治参与和投票）。

With the help of Tano, the village elder, and many eager young men to help us in the field, we conducted a survey of the primary rainforest that surrounds the village.

通过村落中长者 Tano 和许多热心年轻人在野外对我们的帮助，我们对围绕着村落的首个雨林进行的调研。

Understanding then the term general or comprehensive aim simply in the sense of a broad survey of the field of present activities, we shall take up some of the larger ends which have currency in the educational theories of the day, and consider what light they throw upon the immediate concrete and diversified aims which are always the educator's real concern.

所谓一般的或综合性的目的，意思不过是对现在活动的领域进行广泛的观察。有了这种了解，我们将就当代教育理论中流行的比较重大的教育目的，选取几个来讨论，并且研究这些目的能否使我们明白教育者真正关切的当前各种具体的目的。

The Comprehensive Survey of China's Coastal Zones and Tideland Resources, which was carried out from 1979 to 1986, has accumulated abundant information for further efforts to be made in this field.

1979年至1986年开展的"全国海岸带和海涂资源综合调查"，为开展海岸带综合管理积累了丰富的资料。

The topic of this paper is knowledge sharing which we find an uncultured research field after having a survey on overseas and domestic study fruits.

在知识经济时代，提高企业的知识水平已经成为商业竞争的迫切要求，而企业内部知识共享是到达这一目的的重要手段。

Survey on wild germplasm of Zanthoxylum nitidum in Guangxi was conducted via field investigation and interview investigation.

采用实地调查和走访调查相结合的方法对两面针在广西的野生种质资源情况进行调查。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。