In 2003, Angulos was driving excavation equipment in a large copper mine when he felt a rush of air.

2003年，安格洛斯在一个大型铜矿矿山驾驶采掘设备时，突然感到了一股气体扑面而来。

Roadheader is an import excavation equipment, but its stability is connected with its working efficiency.

掘进机在挖掘设备中具有重要作用，而掘进机作业稳定性与生产效益密切相关。

The benches allow equipment and personnel access to the fresh ore (gray) exposed at the bottom of the excavation.

这些平台是使（采矿）设备和工人抵达矿坑底部，到新挖出来的矿石（灰色）面前的通道。

Confined Space Potentials exist when the excavation is exposed to hazardous gases from nearby process operations or mobile equipment.

当开挖暴露于来自邻近工艺运转或动设备的气体时，受限空间存在潜在的风险。

May operate excavation machinery and other heavy equipment.

操作挖掘机械等重型设备。

With intensive mining and the use of trackless equipment, excavation becomes even more difficult as a result of widening of opening size.

随着开采强度的提高和无轨设备的应用，巷道断面相应增大，施工难度也随之增加。

That main excavation and loading equipment at present in domestic large-scale open-pit is the Electric shovel.

目前国内大型露天矿山的铲装设备主要是电铲。

The basic work principle and equipment composition of non-excavation technique of directional drilling machine have been introduced in this paper.

介绍了采用定向钻非开挖技术的基本工作原理与设备组成。