矿井

Visitors can travel on the Miners' Tramway or descend into the Deep Mine, via a funicular railway which uses an old incline, to explore this former slate mine and learn how slate was extracted and processed and about the lives of the miners.

游客可以乘坐火车在矿工轨道（Miners' Tramway）上游览，也可以乘坐索道车通过古老的货运斜坡，缓缓下到Deep矿井深处，探索曾经的板岩矿井，了解板岩是如何被开采和加工，并了解矿工们的生活。

It has introduced the application of programmable controller in the mine hoister ,the constitution,functions,software and hardware setting of model PC electric control device for mine hoistor.

介绍了可编程控制器在矿井提升机中的应用及矿井提升机 PC电控装置的组成、性能、特点和软硬件设置情况。

In order to solve the shortcoming of aboveground mine water treatment, a new underground mine water treatment technology is studied. It consists of settling system, filtration system, resisting incrustation system and control system.

针对矿井水地面处理的缺点，研究了一种新型的矿井水井下处理工艺，该处理系统包括沉淀系统，过滤系统，阻垢系统和自控系统。

In view of the early risk control, a systematic analysis of conditions, connotations and basic features about intrinsically safety coal mine construction in Shenhua Ningxia Coal Group was made, and the ways to deal with the situation were probed from the intrinsical safety of staff and workers, equipments, environment and scientific management.

基于风险预控，分析了神华宁夏煤业集团本质安全型矿井建设的基础、内涵与特征，从实现人的本质安全、物的本质安全、环境的本质安全和科学管理等方面，对构建本质安全型矿井的途径和对策进行了探讨。

Based on contraction mapping theorem of analysis mathematics, the non-steady flow mathematical model of mine ventilation network was analyzed.

利用分析数学的压缩映射原理，对矿井通风网络非稳定流动数学模型进行了分析，得出了数学模型数值解收敛的条件，确定了以惯性系数排序选择最小生成树的回路选择方案，为矿井通风网络非稳定流动数学模型数值解的收敛性提供了理论依据。

Yes. This coal pit can be said to be China's oldest mechanically opened coal mine.

是啊。这口矿井可以说是中国年纪最大的一口机械矿井了吧。

China's coal mines are the most dangerous in the world.

中国的矿井是世界上最危险的矿井。

To overcome the shortcomings of the current methods for optimization of mine ventilation system s,a new osculation value method was put forward and utilized.

针对现有矿井通风系统方案优选方法中存在的问题，通过实例分析研究了密切值法在矿井通风系统方案优选中的应用。

To overcome the shortcomings of the current methods for optimization of mine ventilation systems,a new osculation value method was put forward and utilized.

针对现有矿井通风系统方案优选方法中存在的问题，通过实例分析研究了密切值法在矿井通风系统方案优选中的应用。

In north China, thermoelectric power station is often selected to build. And the pithead power plant is more economical, but the water source must be solved firstly.

长期以来，由于技术所限和认识不足，矿井水被当作水害加以预防和治理，矿井水被白白排掉而未加以综合利用和保护。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。