Well, the main activities in the region were historically steel and paper processing, I think.
我想，该地区过去的主要活动是钢铁和造纸加工。
The main activities in the region were historically steel and paper processing.
该地区过去的主要产业是钢铁工业和造纸加工。
A thesis is the main creative sentiment in a paper.
论题是一篇论文主要的创造性观点。
Say it (main body of the paper)
论述你的观点（论文的主体部分）
This is the main content of this paper.
这就是本文所研究的主要内容。
The main part of this paper is divided into four parts.
本文主体部分共分为四个部分。
This paper cutter suction dredger construction of the main analog interface design.
本文主要对绞吸挖泥船施工模拟的主界面进行了设计。
This is the main point of the paper.
这也是本文提出的主要观点。
At the last, this paper summarized and educed study progress and some main conclusion.
最后，本文总结和整理了整个论述过程中所得出的一些重要结论。
This paper introduces the main performance and internal structure, principle and application circuit of MAX7042.
文中介绍了MAX7042的主要技术性能、内部结构、工作原理和应用电路。
This paper deals with the concept and main points of policy decision.
本文探讨了决策的概念，分析了决策概念的要点。
This paper discuss the main technology of automatic extraction of index word and retrieval model.
本文论述了索引词的自动提取和检索模型所使用的主要技术进行了论述。
The main work of this paper is the research of microwave imaging algorithm.
本课题的主要工作为微波成像算法的研究。
For so long a time paper has been always the main carrier of the information.
纸张在很长一段时期一直是信息的主要载体。
Test object characteristics and main test functions are described in the paper.
在该文中叙述了测试目标特性和主要测试功能。
The main aim in this paper is the basic theory of the three screw pump.
于是在研究中主要是对三螺杆泵做基础理论的研究。
The first part specifies the main signification and the main contents of this paper.
第一部分综述本论文的研究意义，主要内容等。
The paper was composed of three parts: preface, main text and conclusion.
论文由绪言、正文、结语三部分构成。
This is also the main research finding of this paper.
这也是本文的主要研究成果。
The paper divides into five main chapters.
按照这一思路，文章分为五部分。
In this paper we give the investors three main results for our discrete financial model.
在这篇论文里对于离散型的财务模型我们给投资者三个主要的结果。
The second part is the main part of the paper.
第二部分为文章论述主体部分。
The design idea and main functions of the system are introduced in the paper.
文中介绍了该系统的设计思路和主要功能。
This part is the main point of the paper.
这一部分是本文的重点。
In the paper, several main methods of image enhancement about satellite image are introduced.
在本篇论文中，较为详细地介绍了遥感图像增强的几种主要方法。
What is the main goal of this paper?
什么是本文的主要目标是什么？
This paper analyzes the concept of the main body of proof.
在界定证明主体概念的同时，文章对证明主体的内涵进行了分析。
The drive and control system is the main body of the paper.
本文的主体是双边直线电磁抽油机的驱动控制系统。
The drive and control system is the main body of the paper.
本文的主体是双边直线电磁抽油机的驱动控制系统。
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