矿山

Subgradient projection method with variable diameter for optimization;2. The variable diameter deephole blasting was adopted to solve problems of open-pit high bench mining.

采用变直径深孔爆破工艺可较好地解决露天矿高台阶开采的爆破根底问题，对等直径和变直径 2种深孔形式爆破后岩体移动速度情况采用高速摄影手段进行了分析和研究，为在高台阶开采的矿山推广变直径深孔爆破提供一些有益的参考依据。

This paper introduces a production-exploration method for a mine using sublevel caving.

本文介绍一个采用分段崩落法矿山的生产勘探方法。

ABSTRACT Sublevel and block caving are extensively used in mining procedures. The emphasis was focused on the theoretical investigation of ore-drawing over a long period of time.

崩落采矿法是国内外金属矿山广泛应用的采矿方法，而放矿理论长时期是研究的重点，虽然有关的放矿理论很多，但矿岩移动规律还需进一步深入研究。

In 1885 (11th year of the reign of Emperor Guangxu), the government formally made Taiwan a full province covering three prefectures and one subprefecture and incorporating 11 counties and 5 cantons.

刘在任内，铺铁路，开矿山，架电线，造商轮，兴办企业，创设新学堂，把台湾社会经济文化的发展大大向前推进。

The earth's surface subsidence is one of the disasters caused by coal exploitation.

矿山开采过程中引起的地表沉陷，为了解决这一问题对覆岩离层的产生机理进行了研究。

The effective treatment of low-grade sulfurous ore and the recovery of valuable minerals are of great significance for the sustainable development of mine and for the pollution reduction of low-grade pyrite.

寻找处理低品位硫矿石的有效方法，回收宝贵的有价矿产资源，对矿山的可持续性发展，减少低品位硫铁矿对环境造成的严重污染具有重要的意义。

Pollution always happens during mining process, particularly the sullage.

矿山开采过程中常常伴随著环境排污，其中又以污水污染较为严重。

All these measures for the management of Mine Surveying in China have played an important role.

种种措施对于我国的矿山测量管理都起到了重要的作用。

The results obtained provide a new method for handling tailings in the metallic mine.

本研究为金属矿山尾矿的资源化综合利用提供了新的思路与方法。

With time and scale of gold exploration, quantity of tailings from gold mines has risen by year.

随着黄金开发规模的扩大和开采历史的延长，黄金矿山尾矿逐年增加。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。