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- underground coal mine staff 煤矿井下人员
- Supply transformers for underground coal mine well are earthed at neutral point. 很多地方煤矿在供电方面存在不安全的隐患,向井下供电的变压器中性点接地。
- Expound the concept of direct stray current of underground coal mine,analyze its harm,and proride some preventive measures. 阐述了煤矿井下直流杂散电流的概念,分析了其产生的危害,提出了防治措施。
- As an attempt, we use the pulse Transient Electriomagnetic Method (TEM) to detect the CSA of underground coal gasification at Liuzhuang coal mine, Tangshan. 作为尝试，应用瞬变电磁法(TEM)对唐山刘庄煤矿煤炭地下气化燃空区进行了探测。
- The paper adopts the embedded construction and related new technologies to design a portable intrinsically safe non-destructive bolt detector for underground coal mine. 采用嵌入式系统架构和相关新技术,设计了用于煤矿井下的本质安全型、便携式、无损锚杆检测仪。
- The coal face of blasting mine in underground coal mine is a very complicated system of disaster environment, the spatio-temporal limit increases the accident probability of blasting operations. 煤矿井下炮采工作面是一个非常复杂的灾害环境系统,又由于时间、空间的限制,使得炮采工作面爆破作业引发事故的可能性增加。
- The State shall take special protective measures for miners working in underground coal mines. 国家对煤矿井下作业的职工采取特殊保护措施。
- DBT is a supplier of complete system solutions for underground coal mining worldwide and world market leader in the area of long wall equipment. DBT公司是全球成套井下采矿设备供货商，在长壁开采设备制造领域居于世界领先地位。
- The actual processes of firedamp explosion in coal mines involve a catastrophic processes occurring in air conditions of underground coal mines . 煤矿发生瓦斯爆炸的过程实质是井下气体状态发生突变的过程。
- Overhead Monorail for Underground Coal Mine 煤矿井下用单轨吊车
- While Shanxi provides the fuel that powers China's sizzling economy, thousands of acres of land are sinking because of the ravages of underground coal mining. 然而,在山西省向中国高速发展的经济提供燃料时,由于煤矿对地下的破坏,导致当地土地正在大面积下沉。
- underground coal mine environment 煤矿井下环境
- Following the improvement of underground coal mining technology and mechanized degree,the condition and the elevating capacity of some used elevator can not meet the demand of the mining production. 随着井下采煤工艺的改进和机械化程度的提高,旧提升绞车的设备状况、提升能力等已不能满足生产的需要。
- HAN Bao-ping,ZHENG Shi-shu,XIE Ke-jun.An approach to the hydrogeologic effect induced by underground coal mining[J].Journal of China University of Mining &Technology,1994,23(3):70-77. [1]韩宝平;郑世书;谢克俊.;煤矿开采诱发的水文地质效应研究[J]
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- Fundamental principle, applicable geological condition, domestic and oversea development of underground gasification and its advantage compared with traditional underground coal mining are introduced. 介绍了煤炭地下气化的基本原理、应用地质条件、国内外发展概况以及与传统的井工开采煤炭相比的优越性。
- That coal mine is no longer worked. 那个煤矿已经不经营了。
- Application of Nucleon Balance in Underground Coal Mine 核子秤在煤矿井下的应用
- Telephone Long-distance Control System Underground Coal Mine 煤矿井下电话远程控制系统
- Preliminary Discussion on How to Prevent Underground Coal Mine Dust 浅谈煤矿井下粉尘的治理
