查询词典 mine

Wire rope is an important component of hoist equipment in Coal Mines, accidents caused by rope broken frequently occur, which make incalculable economic loss to Coal mine industry and the Nation, and the problem must be highly focused on by mine safety managers.

钢丝绳是煤矿提升设备的重要构件，因钢丝绳断绳引起的重大伤亡事故频繁发生，给国家、煤矿造成不可估量的经济损失，这是值得煤矿安全管理人员高度重视的问题。

Based on low frequency drive system of the DPB550/150 Ⅱ type an intelligent control strategy applied to the speed control of AC mine hoist is described and a satisfactory control performance is obtained. Some problems, such as unsatisfactory control performance of AC coal mine hoist in deceleration and low speed drive period, and the difficulty of obtaining the constant deceleration during changing load, are solved.

以DPB－550／150－I型中国矿业大学低频拖动系统为基础，应用智能控制策略，实现了交流提升机的速度控制，得到了较好的恒减速控制性能，解决了矿井交流提升机在减速段和爬行段的速度控制性能较差以及在负载变动时，很难实现恒减速的问题。

Relieve the initial stage, is a small coal kiln of privately owned;After people's commune establish, the reformation is an agency brigade coal mine;After people's commune cancel, change name to the village coal mine.

解放初期，为私营小煤窑；人民公社成立后，改造为社队煤矿；人民公社取消后，改名为乡镇煤矿。

The State Department exercised the minerals property rights and the mine management enterprise on behalf of the country exercises the mining power to form a void region, under the unclear situation of property right restraint, the coal mine operator reduces the security cost and carries on plundering mining to the mineral resource, which caused the safety production in great danger.

国务院代表国家行使矿产所有权与矿山经营企业行使采矿权形成了一个虚空地带，在产权约束不明的情况之下，煤矿经营者降低安全成本并对矿产资源进行掠夺性开采，致使安全生产岌岌可危。

Tub coal truck is the major transport machinery ,mine truck isvulnerable in the most components of mine truck .

矿车是煤矿运输中的主要运输机械，而矿车轮又是矿车的易损部件。

Tub coal truck is the major transport machinery ,mine truck is vulnerable in the most components of mine truck .

摘要矿车是煤矿运输中的主要运输机械，而矿车轮又是矿车的易损部件。

Tub coal truck is the major transport machinery ,mine truck is vulnerable in the most components of mine truck .

矿车是煤矿运输中的主要运输机械，而矿车轮又是矿车的易损部件。

More than 10 minutes, Peng Zhixiang to Anyuan coal mines, mine in Anyuan leaders Wu Bangguo visited the well-head pressure fan room, floor repair shop, transportation lines and coal washery coal-Ping, to insist on the production of the cadres and workers holiday greetings , and in the field and Anyuan mine who led the research work issues.

10点多钟，彭志祥来到安源煤矿，在安源矿领导的陪同下，先后走访了井口压风机房、地面修理车间、运输线和洗煤厂煤坪，向节日坚持生产的干部职工表示问候，并在现场与安源矿领导研究工作问题。

In this paper, various factors that affect the works of the coal mine standardization on safety and quality were analyzed, and effective approaches to continuously promote the coal mine standardization construction on safety and quality were advanced on the basis of summarization on many years practice.

通过总结多年的工作实践，分析了影响煤矿安全质量标准化工作开展的各种因素，提出了不断推进煤矿质量标准化建设的有效途径。

Since the 1990s, and China Metallurgical Beijing Metallurgical Equipment Research Institute "powerful combination, complement each other" successful implementation of the technology and products "grafting", specializing in the production of series of mining equipment, production, processing 5-2000 ton sets Dressing Equipment, the main products: E-type, hammer, roller, counter-style, vertical crusher, and highly efficient energy-saving cone bearing Mill Park, shaker, automatic anti-sand spiral at a machine, and highly efficient energy-saving flotation machine, mixing Mine Trough, feeder, thickener, mine upgrade, conveyors and other equipment.

二十世纪九十年代以来和中冶北京冶金设备研究总院&强强联合，优势互补&成功实现了科技与产品&嫁接&，专业生产系列矿山设备、生产日处理5-2000吨级成套选矿设备，主要产品有：鄂式、锤式、辊式、反击式、立式破碎机、高效节能园锥轴承球磨机，振动筛，自动反砂螺旋分极机、高效节能浮选机、矿用搅拌槽、给料机、浓缩机，矿用提升、输送机等设备。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐