煤矿

Have produced the natural radioactive level of the colliery of Yunnan through the investigation: Mainly it is brown coal , it is low bituminous coals rotten, in bituminous coal and levels radioactives natural of bituminous coals rottens highs rotten.

通过调查得出了云南煤矿的天然放射性水平：主要是褐煤、低变质烟煤、中变质烟煤和高变质烟煤的天然放射性水平。

The main target coal seam of Xieqiao Mine is directly covered with the Quaternary bottom gravels, whose impermeability affects the reasonable retainment of waterproof pillar .

第四纪底砾层直接覆盖在谢桥煤矿煤系地层之上，其隔水性能影响到防水煤柱的合理留设。

Taking into account the coal company's future growth and profitability, coal plate reasonable current valuation levels, some coal shares a certain degree of underestimation.

考虑到煤炭公司未来增长和盈利能力，煤炭板块目前的估值水平合理，一些煤矿股份，一定程度的低估。

Is a single customer from the beginning of military support extended to communications, electric power, rail, petrochemical, aviation, mining, metallurgy, finance, construction, civil and other areas.

客户也是由开始单一的军队拥护，拓展到通信、电力、铁路、石化、民航、煤矿、冶金、金融、建筑、民用等诸多领域。

It not only eliminates potential safety hazard effectively, corrects customary peccancies, ensures the implementation of safety operation rules, promotes the effective implementation of safety input, improve workers' safety ideological realm and safety standards of morality, but also strengthens the construction of coal mine safety culture that implement the concrete embodiment of "Three Represents" important thinking.

安全文化建设将有利于安全生产责任制的落实和安全管理制度的建立健全，有效消除安全隐患，纠正习惯性违章，确保安全操作规程的落实，促进安全投入的有效实施，提高职工的安全思想境界，提高安全道德水准，而且加强煤矿安全文化建设是落实&三个代表&重要思想的具体体现。

This article has made statistic and analyses on many types of flameproof button and switches used in coalmine, such as travel switch, limit switch, pull switch,and so on.

就煤矿井下现用的隔爆按钮以及行程开关、限位开关、打点器、拉线开关、井口开关等进行了统计、分析，针对使用中出现的问题提出了改进措施。

The design and manufacturing specifications of a hydraulic cylinder, hydraulic pump station, hydraulic test equipment, hydraulic machinery non-standard equipment, widely used in the steel, automobile, coal, oil and other industries.

设计制造的个规格液压油缸、液压泵站、液压试验装置、液压机械非标设备，广泛用于钢铁、汽车、煤矿、石油等行业。

Aimed at the problem of vacuum tube s working in vacuum switch applied in coal mines, the reasons and results of air escape taking place in vacuum tube s,a modified step is adopted to set up a protection unit for vacuum tube in vacuum switch.

针对真空开关在煤矿推广应用中真空管存在的问题，以及一旦漏气造成的后果和原因进行了分析，提出改进措施，并对在真空开关增加真空管的保护装置进行了探讨。

During the development of Coal Industry in KunMing, what is the strategic position of Coal Industry in our city on earth? How to lay out ? Which problems should be soluted emphatically ? It promotes the sustainable,stable and well-liking development of the whole Coal Industry in order to be satisfied with the requirement of National Economy development.

在昆明市煤炭工业发展过程中，煤矿企业究竟占有怎样的战略地位，应该怎样布局和规划，应着重解决哪些主要问题，能促使煤炭工业持续、稳定、健康的发展，以适应国民经济发展的需要。

The subject of the mechanism-based emulsion formulated based on the theory, the ratio in the emulsion is to use part of the Venturi tube by high-speed water pipes in their place to produce negative pressure to suction up oil ratio of the working principle, and the higher degree of automation systems, the emulsion with the concentration can completely meet the "Coal Mine Safety Regulations" requirements.

本课题在基于乳化液配制机理的理论基础之上，在乳化液配比部分是利用通过文丘里管的高速水流在其喉管处产生负压将油吸上来的工作原理进行配比的，该系统自动化程度较高，所配乳化液浓度完全能够满足《煤矿安全规程》要求。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐