field survey

field survey的基本解释

n.

实地调查, 实地考察

与field survey相关的网络例句 [注：此内容来源于网络，仅供参考]

This paper introduces the outline of inside tunnel survey,and expounds the survey control in tunneling works from aspects of the construction traverse survey,midline layout survey,midline detection and tolerance,elevation control survey,vertical section survey and cross section survey,and breakthrough survey,etc.

介绍了洞内测量纲要，从施工导线测量、中线施工放样、中线检测与限差、高程控制测量、纵断面测量和横断面测量、贯通测量等方面阐述了隧洞工程测量控制。

The main contributions of the second part of this dissertation are focused on the cryptographic properties of logical functions over finite field, with the help of the properties of trace functions, and that of p-polynomials, as well as the permutation theory over finite field: The new definition of Chrestenson linear spectrum is given and the relation between the new Chrestenson linear spectrum and the Chrestenson cyclic spectrum is presented, followed by the inverse formula of logical function over finite field; The distribution for linear structures of the logical functions over finite field is discussed and the complete construction of logical functions taking on all vectors as linear structures is suggested, which leads to the conception of the extended affine functions over finite field, whose cryptographic properties is similar to that of the affine functions over field GF (2) and prime field F〓; The relationship between the degeneration of logical functions and the linear structures, the degeneration of logical functions and the support of Chrestenson spectrum, as well as the relation between the nonlinearity and the linear structures are discussed; Using the relation of the logical functions over finite field and the vector logical functions over its prime field, we reveal the relationship between the perfect nonlinear functions over finite field and the vector generalized Bent functions over its prime field; The existence or not of the perfect nonlinear functions with any variables over any finite fields is offered, and some methods are proposed to construct the perfect nonlinear functions by using the balanced p-polynomials over finite field.

重新定义了有限域上逻辑函数的Chrestenson线性谱，考察了新定义的Chrestenson线性谱和原来的Chrestenson循环谱的关系，并利用一组对偶基给出了有限域上逻辑函数的反演公式；给出了有限域上随机变量联合分布的分解式，并利用随机变量联合分布的分解式对有限域上逻辑函数的密码性质进行了研究；给出了有限域上逻辑函数与相应素域上向量逻辑函数的关系，探讨了它们之间密码性质的联系，如平衡性，相关免疫性，扩散性，线性结构以及非线性度等；讨论了有限域上逻辑函数各类线性结构之间的关系，并给出了任意点都是线性结构的逻辑函数的全部构造，由此引出了有限域上的"泛仿射函数"的概念；考察了有限域上逻辑函数的退化性与线性结构的关系、退化性与Chrestenson谱支集的关系；给出了有限域逻辑函数非线性度的定义，利用有限域上逻辑函数的非线性度与相应素域上向量逻辑函数非线性度的关系，考察了有限域上逻辑函数的非线性度与线性结构的关系；利用有限域上逻辑函数与相应素域上向量逻辑函数的关系，揭示了有限域上的广义Bent函数与相应素域上的广义Bent函数的关系，以及有限域上的完全非线性函数与相应素域上向量广义Bent函数之间的关系；给出了任意有限域上任意n元完全非线性函数存在性与否的完整证明，并利用有限域上平衡的p-多项式的性质给出了有限域上完全非线性函数的一些基本构造方法。

Province, Shijiazhuang, Baoding have been involved in two rounds of 61 cities nationwide survey and synthesis of MSM epidemic prevention and control work, 4-6 months of this year the third round of the survey will be carried out; the rest of the city of nine work-site investigations and Shijiazhuang, Baoding, the third round of the survey the same time, also in accordance with the national program of 61 pilot cities, the survey used a snowball method, sample size of 300 people, mainly MSM population survey of AIDS, syphilis, hepatitis C infection; Shijiazhuang, Baoding, the completion of the third round of the national survey At the same time, will also focus on the MSM population in rural areas of the outbreak investigation; in July 2009, municipalities to carry out data entry, upload, analysis and summary.

我省石家庄、保定已参与两轮全国61个城市MSM疫情调查与综合防治工作，在今年4-6月份将开展第三轮调查；其余9市的现场调查工作与石家庄、保定的第三轮调查同步进行，同样按照国家61个试点城市方案、采用滚雪球法调查，样本量均为300人份，主要调查MSM人群艾滋病、梅毒、丙肝的感染情况；石家庄、保定在完成全国第三轮调查的同时，还将侧重于农村地区的MSM人群的疫情调查；2009年7月，各市进行数据录入、上传、分析和汇总。

与field survey相关的网络解释 [注：此内容来源于网络，仅供参考]

Field survey：现场调查

现场调查(field survey)是流行病学研究的一个特点. 自从140多年前,约翰*斯诺(John Snow)对伦敦霍乱流行进行开创性流行病学研究以来,就确认现场调查是医学科学研究中有别于其他研究方法的独特研究方法. 我国著名流行病学家蒋豫图教授曾有一句名言:"不去现场工作,

Field survey：实地勘察;实地测量

field sheet 外业记录表 | field survey 实地勘察;实地测量 | field testing 实地测试;工地测试

Field survey：野外测量

field of view 视场 | field survey 野外测量 | field work 野外工作现场工作

Field survey：实地调查;野外调查

field study实地考察;野外考察 | field survey实地调查;野外调查 | filtration过滤

field survey design：现场调查设计

现场调查 field investigation; field survey; spot investigation; field | 现场调查设计 field survey design | 现场调查员 field worker