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Scott Green - Find free articles by expert author Scott Green for republishing on your websites, blogs and free offline magazines.

斯科特绿色-找到免费文章由专家作者斯科特绿色重新在您的网站上，博客和免费离线杂志。

John Smiths - Find free articles by expert author John Smiths for republishing on your websites, blogs and free offline magazines.

约翰史密斯-找到免费文章的作者约翰史密斯专家为重新在您的网站上，博客和免费离线杂志。

Thomas Young - Find free articles by expert author Thomas Young for republishing on your websites, blogs and free offline magazines.

托马斯杨-找到免费的专家文章作者托马斯杨为重新在您的网站上，博客和免费离线杂志。

Mark Smith - Find free articles by expert author Mark Smith for republishing on your websites, blogs and free offline magazines.

马克史密斯-找到免费文章由专家作者马克史密斯重新在您的网站上，博客和免费离线杂志。

David Johnson - Find free articles by expert author David Johnson for republishing on your websites, blogs and free offline magazines.

大卫约翰逊-找到免费文章由专家作家大卫约翰逊重新在您的网站上，博客和免费离线杂志。

David Brooks - Find free articles by expert author David Brooks for republishing on your websites, blogs and free offline magazines.

大卫布鲁克斯-找到免费文章由专家作家大卫布鲁克斯的重新在您的网站上，博客和免费离线杂志。

Bob Williams - Find free articles by expert author Bob Williams for republishing on your websites, blogs and free offline magazines.

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Steve Smith - Find free articles by expert author Steve Smith for republishing on your websites, blogs and free offline magazines.

史蒂夫史密斯-找到免费文章由专家作者史蒂夫史密斯重新在您的网站上，博客和免费离线杂志。

Thompson - Find free articles by expert author S. Thompson for republishing on your websites, blogs and free offline magazines.

南汤普森-找到免费文章由专家撰文对美国汤普森重新在您的网站上，博客和免费离线杂志。

John Edmond - Find free articles by expert author John Edmond for republishing on your websites, blogs and free offline magazines.

约翰爱德蒙-找到免费文章的作者约翰爱德蒙专家为重新在您的网站上，博客和免费离线杂志。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。