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At the moment, this failure is obscured by the economic boom.

目前，这个缺陷被经济的繁荣增长所掩盖。

Unlike the origins of most nations, america's origins are not oBscured in the mists of time

不象大多数国家的起源，美国的起源不会在时间的长河中被隐藏

The virtual nature of cyberspace obscured man's true face.

网络空间的虚拟性遮蔽了人的真实面目。

When I asked why she came back so later,she obscured her meaning.

我问她为什么回来这么晚，她回答得闪烁其词。

Every one has the bored ability,but,that's very apt to obscured by habbit.

每个人都有与生俱来的能力，只是很容易被习惯所掩盖。

A most fundamental problem, for thousands of years wholly obscured by its complications, is that of motion.

有一个基本问题，几千年来都因为它太复杂而含糊不清，这就是运动的问题。

His fame was obscured by that of his great father.

他父亲的名气使他黯然失色。

He promenaded this otherness. It made him a star but obscured his talent.

他大肆招摇这种另类，这让他成了明星，却掩盖了他的演戏天份。

He promenaded this otherness. It made him a star but obscured his talent.

他大肆招摇这种另类，这让他成了明星，却掩盖了他的演戏天分。

The nucleus of NGC 4038 is obscured by dust which dims and reddens starlight by scattering the shorter, bluer wavelengths.

右下角的NGC 4038核心被尘埃遮蔽，蓝紫光被散射而显得发红，同样的蓝巨星簇在气体尘埃云中也发红。

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。