查询词典 field survey

But recent survey reported that Panicum maximum, a perennial grass in the family of Poaceae and listed as one of the twenty most noxious invasive plants in Taiwan has replaced the role of M sinensis in those areas. As a result of recurrent burning, A. confuse forest has been gradually replaced by the grassland of P. maximum. In this study, I compared morphological, photosynthetic, growth and life history characters of field growing P.

早期的研究指出：在大肚山与铁砧山区的本地植物芒草为当地相思树林反覆火烧后的最优势种；但近年来同一地区的研究显示：大黍已取代芒草的角色，而且发现大黍在火烧后植群覆盖度显著的增加，但芒草却没有相同的现象；反覆火烧使得大肚山地区的相思树林逐渐转变成以大黍为主的草生地。

Supported by the project of "1:250000 regional geological survey of Yinchuan map and Jilantai map ", we obtained more understanding from field and also fundamental data to focus on the tectonic framework and evolution of Helan mountain in phanerozoic period.

贺兰山地区地处我国北方东、西部不同大地构造单元的枢纽地区，是我国北方构造、地貌以及各种地球物理的分界带，也是我国逆冲推覆构造较为发育的地区之一。

The author researched the relationship between the incident photon energy and survey threshold value on field photoemission.

研究了场致光电发射入射光子能量与探测阈值之间的关系。

Methods The field questionaire survey of cholera was carried out and the results were statistically analyzed using Excel.

方法采用统一的霍乱流行病学调查表开展现场调查，用EXCEL统计软件对调查结果进行统计分析。

This paper makes a comprehensive survey of the recommender system research aiming to facilitate readers to understand this field.

全面地总结推荐系统的研究现状，旨在介绍网络推荐的算法思想、帮助读者了解这个研究领域。

In adjustment calculation of highway control survey, field observation values must be changed onto reference ellipsoid and then onto Gauss projection plane, at last the control network would be adjusted in this plane.

在公路控制测量的平差计算中，须将外业观测值化算为参考椭球面上的观测值，然后再化算为高斯平面上的观测值，并在高斯平面上进行控制网的平差计算。

The low frequency digital phase reflectoscope reflector in the industrial field is the general measuring tool which uses frequently, for instance the electrical network incorporation switches on when the electrical power system, requests two electrical network's electrical signals to be the same, between this request precise survey two power frequency signal phase difference.

低频数字式相位测试仪在工业领域中是经常用到的一般测量工具，比如在电力系统中电网并网合闸时，要求两电网的电信号相同，这就要求精确的测量两工频信号之间的相位差。

Quality Assurance Center, the Great Wall of China opened up the field of survey and design quality system (ISO9000) certification in the country has created the first 21, except for China Tianchen company issued the first national design industry certification, but also for the country's largest Daqing Petroleum Administration Bureau of enterprises (28 million) of the overall authentication certificates for the micro-car factory in Tianjin issued the first National Certification automotive industry for the central city of Harbin presented the first national design activities have a commercial certificate service system, for China's Guizhou Maotai liquor industry plant awarded the first National Certification for Tanggu saltworks awarded the first National Certificate salt industry for China Railway Materials Tianjin issued the first material system, the National Certification for Tianjin Service Center for Scholarly Exchange awarded the first Certificate of intermediary organizations, in order to Qingdao Branch Qingdao railway station railway industry presented the first certificate for the China Telecom Group Tianjin Telecom awarded the first Certificate telecommunications industry and so on.

长城质量保证中心开辟了我国勘测设计领域的质量体系(ISO9000)认证工作，在全国创造了二十一项第一，除为中国天辰公司颁发了全国第一张设计行业认证证书外还为全国最大的企业大庆石油管理局(28万人)整体认证颁发证书，为天津微型汽车厂颁发全国第一张汽车行业认证证书，为哈尔滨中央商城颁发全国第一张有设计活动的商业服务系统认证证书，为中国贵州茅台酒厂颁发全国酒类行业第一张认证证书，为塘沽盐场颁发全国第一张制盐行业的认证证书，为中国铁路物资天津公司颁发全国第一张物资系统认证证书，为天津市留学服务中心颁发第一张中介机构的认证证书，为青岛铁路分局青岛站颁发铁路行业第一张认证证书，为中国电信集团天津电信公司颁发第一张电信行业认证证书等等。

By the research of sampling survey and radio propagation, a novel method on sampling and analysis of field test data is introduced.

通过对抽样调查理论和无线传播特点的研究，提出了一种移动通信网络路测数据的抽样与分析方法。

With the sacrificing dance of Manchu Shamanism as the subject investigated, the author carried out a comprehensive research on the origin, development, and pattern of Shamanist dance, based on a survey and analysis of existing research results as well as a field study of the author.

本文以满族萨满教祭祀仪式中的舞蹈为研究对象，在对大量历史文献和前人研究成果梳理、总结的基础上，结合笔者的田野调查资料，对满族萨满舞蹈的发生、发展及存在规律等方面进行了全面探索与研究。

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。