查询词典 coal miner

Service Project: Canton dredge, pipe dredge Canton, Canton toilet repair the company's main: 10 #, 20 #, 35 #, 45 #, 27simn petroleum, chemical, textile, hydraulic, medical, electric, military machinery, coal stent , boilers, instrumentation, decorative, building and other industries with large and small caliber, and special materials, special specifications, special purpose, thin-thick-walled seamless pipe and all kinds of alloy pipes, high and low and medium pressure boiler tubes, seamless steel pipe, stainless steel pipe, fertilizer exclusive possession ; and purchasing for users to sell, joint sales, transfers the backlog of all kinds of seamless steel tubes.

服务项目：广州疏通，广州管道疏通，广州马桶维修本公司主营：10#、20#、35#、45#、27simn石油、化工、纺织、液压、医疗、电热、军工机械、煤矿支架、锅炉仪表、装饰、建筑等行业用大小口径，及特殊材质、特殊规格、特殊用途、薄厚壁无缝管及各种合金管、高低中压锅炉管、无缝钢管、不锈钢管、化肥专用管；并可为用户代购代销、联合销售、调剂积压的各种无缝钢管。

The-430m track drift in Xuchang Coal Mine is a common passage for pedestrian and track transport.

针对许厂煤矿的-430m轨道运输斜巷行车兼做行人的特点，为满足行车不行人，行人不行车的规定，提出了一种新型矿井轨道斜巷人车安全闭锁装置。

Underground whole-space transient electromagnetic method was tested at the driving face of a drift in a coal mine for detecting water-bearing zones ahead of tunneling.

根据初探结果，采用不共面同轴偶极观测方式时，UWTEM在巷道掘进头前方的有效探测范围约为70m，巷道每掘进50m进行一次跟踪探测。

The practice of bolt support in reserved coal drift in mining pressure area is introduced,helpful conclusion is obtained through observation and analyse.

介绍了煤巷锚杆支护在动压区留巷的实践，并通过观测及数据分析，得出了有借鉴意义的结论。

It could be used widely for exploration and prospecting of geology, metallurgy, coal, hydrological well, engineering and other industries drilling with diamond bit or tungsten-carbide tipped bit.

它可广泛应用于勘探和地质勘探，冶金，煤炭，水文，工程和其他行业的钻探与金刚石钻头或硬质合金打破位。

Coal seam methane well ; drilling technology ; non-linear contact analysis ; Downhole Hammer Drilling ; rotary drilling

吉林大学；张龙飞煤层气井；钻井工艺；非线性接触分析；潜孔锤钻进；回转钻进

Analyzing the calculating process of belt conveyor with high angle theoretically, starting from its theoretic calculate the cross sectional area of materials and peripheral force, shaft power of drum, power of motor, using point by point method to get the resultant strain of every drum and torsion of driving drum, calculating the maximum strain and the maximum reverse stopping torque, to give the support on theory for using belt conveyor with super-long distance, high angle under the coal mine.

本文针对长运距、大倾角、高强度带式输送机设计过程中存在的问题，从四个方面对大倾角带式输送机进行分析研究：从理论上解析大倾角带式输送机的计算过程，从大倾角带式输送机的理论入手，详细计算物料的横截面面积、圆周力、滚筒轴功率和电机功率，利用逐点计算法计算各个滚筒的合张力以及传动滚筒的扭距，计算出胶带的最大张力和最大逆止力矩，给长运距、大倾角皮带机在煤矿井下的使用给予理论上的支持。

For the characteristics of driving working face of chinese coal mine,designing three types of structural model of wet centrifugal precipitator.

针对中国煤矿综掘工作面的产尘特点，设计了湿式离心除尘器3种结构模型。

This article introduces the situation of using the longhole shock blasting technology to prevent gas and coal outburst in driving face ,analyzes the application result.

介绍了在掘进工作面应用深孔松动爆破技术预防煤与瓦斯突出的实施情况，并对应用效果进行了分析。

The paper intrtroduced some partial ventilation management methods at driving face in coal tunnel.

介绍了煤巷掘进工作面局部通风管理方法及管理经验。

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