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- In accordance with the related state laws and regulations, investigation and assessment of the real basic conditions of safe production at non coal mines were made. 根据国家相关的法律法规条文,对非煤矿山实际的安全生产基本条件进行了调查和评价。
- The coal underground gasification is still in testing and researching phase right now, and if it obtains the breakthrough technically, the ratio of the clean g... 近阶段世界各主要采煤国正在加大对煤层气开采的研究和试验,煤层气开采有望成为煤炭采掘业的重要组成部分。
- The PV method is applied to wet injecting system of underground mine and test verification is conducted. 在研制成的“煤矿井下的湿喷作业系统”中应用了“筑峰填谷”法,并进行了试验验证。
- Some experiences on stope roof management in metal underground mine are introduced. 介绍金属地下矿山采场顶板管理的几点经验。
- In the paper,the utilizations on natural energy resources in underground mine ventilation are discussed. 通过实例,对矿井通风中自然能源利用问题进行了分析和论述。
- This paper provides a simplified mechanical treatment for coal / rock pillar and roof in underground mining. 本文对地下采矿中遇到的煤岩柱及顶板进行了力学的简化处理;
- Preferable safety and economy technicalbenefit may be obtained through reasonable and economical method of non coal pillar Gob-side Entry Retaining Mining and the layout of normal heading stope. 通过合理、经济的无煤柱沿空留巷方法布置正规采煤工作面进行回采可获得较好的安全、经济技术效益。
- The Radio frequency communication irreplaceably makes mobile communication realized in underground mine. 射频通信无可替代地实现了矿山井下的移动通信。
- The result indicates the parameter of underground mine abide by some probability distribution. 结果表明,井下生产的一些参数各服从于某种概率分布。
- In underground mining the method of breaking up ore varies. Huge machines called continuous miners can be used for soft deposits like salt or coal. 地下开采所用的落矿方法有多种。对于盐或煤等松软矿床,可用联合采矿机开采。
- This paper describes and discusses the configuration,coorking principle and design methods,etc,of measuring hoper used in underground mine. 论述了井下矿山矿井计量漏斗的结构、工作原理和设计方法等。
- The paper makes qualitative and quantitative analysis on the potential haulage accident in a certain underground mine of Yunnan. 本文采用FTA法对云南省某地下矿可能发生的运输事故作了定性及定量分析。
- To handle a cave caused by roof fallin a underground mine is a very hard and dangrous work.This paper introduced new research achievements of Beijing Research Institute of coal mining, CCMRI. 介绍了煤炭科学研究总院北京开采所新近研究成功的用于机械化充填井下各种空洞的泡沫水泥新材料、新设备和新工艺。
- coal and refuse separation in underground mine 井下煤矸分选
- Historically, Sungai Lembing was a rich and famous town, as the main producer of tin in Pahang.Lembing is the deepest and longest underground mine in the world. 林明镇是个很富有和著名的市镇,因为它是彭亨州的主要锡矿生产区.;林明是世界上最深和最长的地下锡矿。
- Trend of Coal Underground Gasify 煤炭地下气化的走势
- Collapse of stope roofs is one of disasters occurring at underground mines. 矿山采场顶板冒落是地下矿山开采中常见的灾害。
- Its extracting method includes surface well drilling and underground mine tunnelling.The tunnelling method is suitable for many mine areas in our country. 开发煤层气的方法有地面钻井开采和井巷开采两种,其中井巷开采方法适用于我国许多矿区。
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- This non sequitur invalidates his argument. 他不根据前提推理因而论证无效。