查询词典 coal mining

Owing to the facts that the marketing price of coal in China is much lower than its real productive cost, and the price ever determined is by no means considering the demand and supply situations of the market, to make the economic appraisal of capital construction projects in Coal mining is still a hard nut to crack.

由于现行的煤炭价格低于煤炭的实际生产费用，且在确定煤价时没有考虑煤炭产品的供求情况，致使煤炭建设项目的经济评价遇到了巨大的困难。

Analyzed the condition of coal-mine explosive malfunction in China, and researched the passivation mechanism of coal-mining emulsion explosive and delay electric blasting cap, and discussed the avenue of researching the permitted emulsion explosive with the function of shock resistance.

分析了我国煤矿的爆破异常情况，研究了煤矿许用乳化炸药和毫秒延期电雷管的动压特性，对爆破异常机理进行了较全面的阐述，并通过耐压型乳化炸药的研制探讨了预防和减少爆破异常现象的技术途径。

With coal mining technology, electromechanical integration, coal chemical, geological surveying, mine ventilation and safety of 22 professionals.

设有煤炭开采技术、机电一体化、煤化工、地质测量、矿井通风与安全等22个专业。

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。

coal is china's most important energy resource. the safety of coal mining enterprises in china has always been the focus of attention.

摘 要：煤炭是中国最主要的能源资源，我国煤矿企业的安全问题一直是社会关注的焦点。

Article 30 Coal mining enterprises shall exercise strict supervision, inspection and control of coal product quality.

第三十条煤矿企业应当加强煤炭产品质量的监督检查和管理。

Coal mining exists badly negative exteriority,it has restricted seriously the sustainable development of coal and diggings.

矿产资源开采存在着严重的负外部性，很大程度地影响到矿产资源及矿区的可持续利用和发展。

Underground coal gasification is the main direction of coal mining and utilization in the future.

煤地下气化是未来煤炭开采和利用的主要方向。

Based on data,aims to set up the mathematical model of the working practice of the cutter gear used on the coal mining machine working in coal layers and the force bearing of the pick-shaped cutter gear.

以试验数据为基础，对采煤机镐形截齿实际工况的煤层和镐形截齿受力建立数学模型；对镐形齿受力进行计算机模拟，且模拟的曲线反映截齿随不同参数的变化。

Ground subsidence caused by underground coal mining is a space-time process. Coal seam pitch is one of the most important factor which determine movement and failure forms of overlying rock and the level of ground movement and deformation.

地下煤层采出后引起的地表沉陷是一个时间和空间过程，煤系地层倾角是决定上覆岩层的移动和破坏形式及地表移动与变形程度的重要因素之一。

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。