查询词典 coal mine

Hereinafter referred to as Powerful Heavy Industry is a large private-owned enterprise specializing in producing bulldozer, loader, tractor hoist, boring machine, coal cutter, vibrating screen and other engineering machinery and heavy mining complete equipment.

鞍山强力重工有限公司是上海中油天宝集团与鞍山第一工程机械股份有限公司实施战略重组后，形成的专业生产推土机、通井机、掘进机、装煤岩机的大型企业。

A design method of electrical coal drill earth leakage protection based on the technology of single-chip microcomputer is introduced.

介绍了一种基于单片机的煤电钻漏电保护的设计方法。

Western Steel, Coal and Petroleum Drill Material Modern Logistics Center will become the important logistics base of Xi'an International Port Zone.

西部钢材与煤炭石油钻采物资现代物流中心也将成为西安国际港务区的重要物流基地。

Numerical simulation of water injection into coal seam throughlong drill hole and determination of its reasonable parameters

用有限元数值模拟方法求解了煤层注水二维、三维非定常渗流方程，用该数值计算模型结合具体实例，主要分析了工艺参数中注水压力、时间和钻孔间距与湿润范围的动态变化关系，给出了选取合理的注水工艺参数的计算公式。

Outburst measures;to expose coal;drill field drilling design;minimum control;optimal parameters of evaluation

防突措施；揭煤；钻场钻孔设计；最小控制范围；最优求值参数

The main section of the paper is to design a new type of synthetically protective install for coal electric drill which displays the control of power cut and power transmission to far away ,short circuit,close and leakage of electricity protection.

本论文主要包括设计和开发一种具有远方停送电控制、短路保护和闭锁、漏电保护和闭锁的高可靠的煤电钻综合保护装置。

This article introduces the practice of releasing gas by using the wind coal drill in the big road of shaft,which shows that the technology is reasonably,the economic efficiency is remarkable,the security has guarantee,is a practical feasible effective way and has broad application prospect.

介绍了立井六采左13路18层大巷采用风煤钻释放瓦斯的实践，技术合理，经济效益显著，安全有保证，是切实可行的的有效途径，具有广阔的应用前景。

Gas flow from borehole directly relates to the gas emission from drill drainage coal bed and judging the initial velocity of gas emission from the borehole. Therefore the study on the change and trend of gas flow has significant practical value.

钻孔瓦斯流量直接关系着钻孔抽放煤层瓦斯涌出量及钻孔瓦斯涌出初速度的判定，因此研究钻孔瓦斯流量的变化及发展趋势具有较大实用价值。

Gas flow from borehole directly relates to the gas emission from drill drainage coal bed and judging the initial velocity of gas emission from the borehole .

钻孔瓦斯流量直接关系着钻孔抽放煤层瓦斯涌出量及钻孔瓦斯涌出初速度的判定，因此研究钻孔瓦斯流量的变化及发展趋势具有较大实用价值。

According to the structure of terrane and exploring water result of coal floor disclosed by hydrology drill hole,it is demonstrated that there exists strong relationship among abnormal apparent conductivity, crack in rock stratum and the extent of filled water in crack,an.

应用音频电透视技术，分析了杨村煤矿2702工作面底板30 m和50 m深度界面的探测成果，并与井下水文钻孔揭露的煤层底板岩层结构及探水结果对比研究，发现音频电透视探测的煤层底板综合视电导率高异常与岩层的裂隙性及其充水程度具有很强的关联性；岩层裂隙与含水层连通性良好部位明显显现视电导率高值异常，结果表明，音频电透视探测成果能够综合反映底板岩层的阻水条件。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48