At first, I will introduce the topic selection background and significance; the thesis to constitutes and research methods.

首先，本文将阐述本课题选题背景及意义、论文内容构成及研究方法。

youdao

Introduction is a summary on the background in the selection of the topic, current study on the topic and research methods.

绪论就本课题的背景和研究现状以及研究方法进行了总结与评述。

youdao

For the crane system, this paper reviews the domestic and international present status of anti-swing control of crane, and presents the background and significance of topic selection.

本文以起重机系统为研究对象，综述了国内外起重机防摆控制的研究现状，并在此基础上阐述选题的背景和意义。

youdao

For the crane system, this paper reviews the domestic and international present status of anti-swing control of crane, and presents the background and significance of topic selection.

本文以起重机系统为研究对象，综述了国内外起重机防摆控制的研究现状，并在此基础上阐述选题的背景和意义。

youdao