本文首先介绍选题的来源、背景和研究意义，指出论文的主要研究内容与目的，明确研发流程再造的动因。
In this thesis, firstly, introduce the topic's origin and background, the research significance, the researching scope and goal, point out the R&D process reengineering reason.
文章首先介绍了课题来源和研究背景。
The source and the research background of this project are introduced firstly.
本文研究了全血和血清背景吸收的来源及特点。
The character and source of background absorption of whole blood and serum are studied.
了解、掌握和运用英语习语，必须研究习语的来源和文化背景。
Thorough understanding and proper application of English idioms need clear insight into its background and source.
第一部分概述了课题的来源，研究背景和国内外研究现状分析。
It begins with part one in narration of problem background, research motivation and current applying situation in and outside.
论文第一章内容主要阐明了写作动机、题目来源背景、研究目标及研究方法，并对本课题的研究状况和研究成果进行了文献综述。
The initiative thought, origination of the title, the research goal and methods are identified in Chapter one. The research situation and results of this program are reviewed.
第一章：简要说明选题背景、研究目的和意义、研究思路和内容、研究方法和数据来源。
Chapter 1, The brief elucidation of research background, methods and data sources, research purpose and research contents, research logic.
第一章：简要说明选题背景、研究目的和意义、研究思路和内容、研究方法和数据来源。
Chapter 1, The brief elucidation of research background, methods and data sources, research purpose and research contents, research logic.
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