煤矿

Article 79 Where administrators of a coal mining enterprise take no measures against hidden danger of ''.

第七十九条煤矿企业的管理人员对煤矿''。

Article 8 The people''s governments at all levels and their departments and coal mining enterprises must take measures to strengthen labor protection and safeguard the safety and health of coal miners.

第八条 各级人民政府及其有关部门和煤矿企业必须采取措施加强劳动保护，保障煤矿职工的安全和健康。

The vast majority of China's coal mine gas, gas production in coal mine accident was the worst natural disaster in one of the accurate determination of coal seam gas pressure on the mine to the development of effective and reasonable gas control measures, forecasting coal and gas outburst danger , and are of great significance.

我国煤矿绝大多数是瓦斯矿井，瓦斯事故是煤矿生产中最严重的自然灾害之一，准确的测定煤层瓦斯压力对矿井有效而合理地制定瓦斯防治措施、预测预报煤与瓦斯突出的危险性，都具有重要的意义。

In 2007 alone, some 3,786 coal miners died in mining accidents.

仅仅在2007年，就大约有3，786名煤矿工人死于煤矿事故。

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

中国的煤矿被认为是世界上最危险的煤矿。

This essay makes systematic study of a series of problems in relation to the economic transition of coll.

本文运用实证分析的方法，对煤矿城市经济转型涉及到的一系列问题进行了系统研究，试图全面系统地回答煤矿城市经济转型的理论与实践问题。

All of these are threatening the production safety of colliery enterprise.

其中，煤矿水灾害是煤矿建设和生产中的主要灾害之一。

Objective: To investigate the species of bacteria isolated from the colliery burned wound infected and their drug susceptibility.

目的：探讨煤矿烧伤患者感染的细菌种类及药敏情况，为煤矿烧伤患者合理选择抗生素治疗提供依据。

Aiming at bottom roof caving and support impact problems induced with abrupt large scale caving upper roof in face 21303 of Daliuta mine, this paper put forward the motion parameter at roof caving and calculation formula of roof shear breaking force with the help of theorem of momentum, theorem of moment of momentum and D' Alembert principle. Roof caving process was simulated by Ansys Ls-DYNA program, and maxim impact force was got. The theoretical research outcomes in the paper were applied in face 21303 of Daliuta mine, and were accordant with actual observing status of roof caving process.

针对神东煤炭公司大柳塔煤矿活井21303综采工作面，上层采空区顶板突然大规模垮落对下层顶板及支架的突然冲击问题，文章采用动量定理、动量矩定理、达朗伯原理推出了顶板垮落瞬间的运动量及顶板切顶垮落所需要的剪力值计算公式，用ANSYS LS-DYNA程序对顶板垮落过程进行了数值计算，得到了最大冲击力，在大柳塔煤矿活井21303综采工作面对顶板垮落特征进行了实际观测和理论成果验证。

Through analyzing, we definitude the difference of technology management and safety management, and put forwards the measures which improves the technology management.

本论文通过分析我国煤矿安全生产状况，论述了煤矿技术管理的重要性和必要性。

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