查询词典 systematic sampling

However, the mathematical study of the geology of this area is still lacking. On the basis of geological field survey, we have made systematic sampling and geochemical analyses of the rocks, and systematically studied the relationship between the Cu-Ni variable and the rock-forming element variables by the method of multi-variate...

文中在系统的野外地质调查基础上，进行了系统采样和岩石地球化学分析，应用多元线性回归和逐步回归分析相结合的方法，借助SPSS数学统计软件系统的研究Cu-Ni变量与造岩元素变量的关系，建立Cu-Ni变量与其他变量的回归方程，验证与解释白石泉Cu-Ni硫化物矿床的成因、岩浆来源等问题，对指导找矿勘探有重要作用，对应用数学地质方法有指引作用。

To make paper more systematic and practical, this paper has first introduced the development history of CT equipment, then, elaborate construction of system and theworking principle of CT equipment systematically, including the property of X-ray, the absorption law of X-ray for materials, the reconstruction principle of CT image, the structure of software and hardware for CT equipment. Finally, with 2 CT systems that we used, statistic and analysis of all the malfunctions which have carried out in passed 10 years was given, and according to the systematic parts of fault located, classify the malfunctions, then elaborate their working principle one by one, analyze the regularity and the characteristic of each malfunction, and put forward specific prevention method and measure for the malfunction.

为了使论文更具系统性和实用性，本论文首先介绍了CT设备的发展史，然后比较系统地阐述CT设备的工作原理及系统结构，包括X射线的特性和物质对x射线的吸收规律，CT图像的重建原理，CT设备的软、硬件结构等，最后以我们所使用的2台CT为例，对10余年来所出现的故障进行了全面的统计分析，并按故障所处的系统部件进行分类，然后逐个阐述其工作原理，分析其故障的特点和规律，并就这些故障提出具体的预防方法和措施。

Based on general orthogonal polynomials and general hybrid orthogonal functions, a new linear, continuous and bounded operator has been proposed in the dissertation. The definitions and properties of PGOPO are given, a various operational rules of the operator have been set up in a systematic way, the convergence of approximate solutions has been discussed. After introducing PGOPO and discussing its main properties and operational rules, a systematic methodology for solving various control problems via PGOPO has been developed.

本文在广义正交多项式及广义混合正交函数的基础上，提出了一种新的线性、连续、有界算子—分段广义正交多项式算子，探讨了这种算子的基本性质，并系统地建立了与该算子有关的各种运算规则及收敛性结论，给出了它在控制理论中的各种应用。

NET technology structure dynamic webpage in realizing in system, is it use personnel can choose to analyze the function through interface conveniently to make, the analysis result trends show with the chart; And has fully utilized treatment technology of running side by side, has considered the loss which sets up the index and resource proportionally, make systematic efficiency be optimized. Pass the imperial examinations at the provincial level several systematic example of practical application in thesis, if customer state analysis, income analysis, conversation situation analysis, is it transfer to situation analysis, rival analyze etc. to breathe out, having proved the system through the actual inspection of market analysis personnel, the analysis conclusion drawn from it is accurate, can be believed, and because of is it with chart, it makes to be very clear to analyze person, can catch the focal point easily to mix, have convincingness even more as to policy-making level of enterprises. System produce high benefit relatively already at present, can is it grasp message, consumption situation of customer in real time to realize easily through it, turn from enterprise policymaker to network analysis monthly demand of conclusion into and require that analyses rivals situation every day, draw occupation rate of market key index can know system become market important basis source of decision already, so, the realization of this project has greater actual meaning.

NET技术构建动态网页，使应用人员能方便地通过界面选择分析功能，分析结果动态以图表显示；并充分利用了并行处理技术，对建立索引与资源的损耗均衡考虑，使系统效率得以优化。3、在论文中举了几个系统实际应用的例子，如客户状态分析、收益分析、通话情况分析、呼转情况分析、竞争对手分析等，证明系统经过了市场分析人员的实际检验，从中得出的分析结论准确、可信，并由于配以图表，使分析人员一目了然，可轻易抓住重点，对企业决策层而言则更具说服力。4、系统目前已产生了较高的效益，通过它能轻易实现实时掌握客户的信息、消费情况，从企业决策者对系统分析结论的月需求变为要求每日分析竞争对手情况，得出市场占有率等关键指标可知系统已成为市场决策的重要依据来源，因此，本项目的实现具有较大的实际意义。

This paper will introduce the basic methods of Cochrane systematic reviews in order to help those who are interested in conducting systematic review.

本文将介绍Cochrane系统评价的基本方法，以期望对愿意进行系统评价的研究人员有所帮助。

This paper will introduce the basic methods of Cochrane systematic reviews in order to help those who will perform Cochrane systematic review.

了解Cochrane系统评价的基本方法，对进行Cochrane系统评价的研究人员有所帮助。

This paper will introduce the basic methods of Cochrane systematic reiews in order to help those who are interested in conducting systematic reiew.

本文将介绍Cochrane系统评价的基本方法，以期望对愿意进行系统评价的研究人员有所帮助。

The research line from essence to phenomenon is helpful to make a systematic examination on the essence, revolution and present situation of social system, is helpful to make a consilience among theoretical knowledge from various schools, as to provide comprehensive and systematic cognition to current reform.

基于本质到现象的研究路线有利于对社会制度的本质、演变和现状进行系统的审视，有助于契合各流派的理论知识，从而对当前改革提供更全面而系统的认知。

Prototype Method is one of the outstanding systematic development methods. The basic thought of law in that system develop initial stage, base on the foundation of preliminary investigation of the user's needs, Construct a systematic embryonic form a workable prototype with the fast method.

原形法是优秀的系统开发方法之一，其基本思想是在系统开发的初期，在对用户需求初步调查的基础上，以快速的方法先构造一个可以工作的系统雏形。

Prototype Method is one of the outstanding systematic development methods. basic thought of law in that system develop initial stage, base on the foundation of preliminary investigation of the user's needs, Construct a systematic embryonic form a workable prototype with the fast method.

原形法是优秀的系统开发之一，其基本思想是在系统开发的初期，在对用户需求初步调查的基础上，以快速的方法先构造一个可以工作的系统雏形。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。