At present , the studies of digital reference service " s practice and relative theory and technology are still on the stage of continuous development and perfect 目前，国内外数字参考服务的实践和相关的理论与技术的研究都还处于不断发展、不断完善的阶段。
So in perishable products ’ renewal , the status of decision - making of cannibalization is more and more important . this paper researches this problem with some relative theories 因此,产品更新中,易逝性高科技产品拼并的决策在企业中的地位就愈发重要起来。
First relative theory is introduced . second practical circuit design is described . at last the vhdl code and simulation results are appended 首先对它们作理论上的介绍，然后说明了实际应用时的电路设计，最后对它们进行vhdl编码，仿真并在附录中给出了结果。
The details includes : 1 . the introduction to the significance , content and the approach of the thesis , and the comprehensive statement of relative theories 具体研究内容包括：第一，研究意义、内容、方法的介绍及相关理论的综述，为论文的研究提供背景和基础。
There are three parts in the thesis except the foreword . the first part expounds the fundamental conceptions of administration efficiency of local government and relative theories 论文除引言之外共分三个部分：第一部分阐述了地方政府行政效率的基本概念和有关理论。
The relative theory basis of thermal calculation was shown . then the details of simulating the thermal characteristic of twt slow - wave structure with ansys were given 文中给出了热特性计算的相关理论基础,并介绍了应用ansys模拟耦合腔慢波结构热特性的具体方法和步骤。
This article is consists four parts . the first part includes the first chapter and it is about the relative theories of centralized funds management 本文由四部分组成,其结构如下:第一章为第一部分,主要阐述企业集团资金管理的含义、特点、目标和原则以及资金集中化管理的通常模式。
After the relative theory is put forward , in order to check the basic hypothesis and kinds of effects of the theory , many experimental methods have been used to be tested again and again 摘要相对论提出后，为了检验这个理论的基本假设和各种相对论效应，人们反复采用各种实验方法进行测量。
The paper is composed of six chapters . in chapter 1 , i states relative theories and concept . first , i make a concise analyses to ethnology in the family , marriage 本论文共分为六个部分，每章具体阐述的内容如下：第一部分为序言，主要由论文的基本观点、选题的意义和研究方法等内容组成。
