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Where the trapline and the cabin once were, and the forest, there is now a large open-pit mine.

以前设陷阱的路线、小木屋和森林所在地，现在已经成为露天开采的大型矿场。

Fire opals are mined in an open-pit format.

火蛋白石是开采在露天矿的格式。

The underground chamber is the important factor damaging the stability of the open-pit mine slope.

地下洞室是危害露天矿边坡稳定性的重要因素，其分布情况更是评价露天矿边坡稳定性的重要条件。

According to the fact of eastern open-pit of Daye Iron Mine, programme system of CAD of slope displacement measure.

并根据大冶铁矿实际，开发出边坡位移监测的计算机辅助分析系统。

The fossil snake bones were found in an open-pit coal mine , along with its prey, which included turtles and crocodiles.

蛇的骨骼化石在一个露天煤矿里被发现，一起发现的有它捕食的动物，包括海龟和鳄鱼。

Mining methods can be divided into open-pit mining, underground mining and exploitation of three kinds of liquid basic mining methods.

采矿方法可大致分为露天开采、地下开采和液体开采3种基本采矿方法。

Transportation problem as an important part of logistics have played a very important role in corporation's benefit. The transportation problem of open-pit is a very complex transportation system. So transportation problem have been largely researched.

运输问题作为物流的重要组成部分，它直接或间接的影响着企业的经济效益，露天矿的采剥运输问题是一复杂的运输系统，已经受到了人们的广泛关注和研究。

Using the software system, the crusher station of NanFen open-pit mine has been checking computed.

对南芬露天铁矿运输系统中破碎站的设置进行了实例计算和分析。

The SCTS which is combined with Shovel-Truck-Portable Crasher-Conveyor will be given priority to the deep open-pit mines in China.

由单斗铲-汽车-可移式破碎机组-胶带运输机系统构成的间断-连续工艺系统将成为我国深露天矿优先考虑的工艺系统之一。

In order to acquire the decision support in Opencast Mining, the geological structures of open-pit mine is expect to understand and grasp at any time.

矿山开采中人们希望能随时了解和掌握露天矿的地质构造，以便为矿山开采提供决策支持。

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。