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1·The proper lift pump for deepsea mining is one of key equipment of hydraulic mining system of ocean polymetallic nodules.

深海采矿专用提升泵是大洋多金属结核水力开采系统的关键设备之一。

2·The main safety function and safety hidden danger of the hydraulic mining lift are discussed, and safety countermeasures are explored.

介绍了液压提升机的主要安全保护功能，并探讨了液压提升机存在的安全隐患与对策。

3·New wheels on the hydraulic mining machine disassembly reduced maintenance man put to use not only the physical labor, but also greatly improve the work efficiency, saving hours of 720 hours.

新式矿车轮对液压拆装机的投入使用不仅减轻了维修工的体力劳动，而且极大提高了工作效率，年可节约工时720小时。

4·The paper researchs the principle of protective seam mining, hydraulic slotting method and executing-digging technology to avoid risk of coal-gas outburst, and its practices in coal mine.

通过分析近距离保护层开采、水力掏槽法及边抽边掘技术防治煤与瓦斯突出原理及实践应用，从而有利于煤与瓦斯突出矿井选择合理有效的防突技术。

5·The hydraulic hinged joint steering system now finds wide use in front—loading machinery, heavy truck and self—propelled mining and engineering vehicles.

目前，在前端式装载机、大型车辆及其它自行式矿山和工程机械上广泛地采用了液压传动的铰接转向方式。

6·This paper introduces state of mining and reserving of thin and almost thin seam, analyses technology and methods of mining thin seam, meanwhile discusses design of hydraulic support in thin seam.

介绍了我国薄、极薄煤层赋存及开采状况，分析了薄煤层开采的技术及方法，并对薄煤层液压支架的设计进行浅探。

7·Seabed mining vehicle is hydraulic drive, low speed and tracked, which runs alongs-shaped path.

深海采矿车为液压驱动低速履带车，在海底按一条S形的预定路径作业。

8·Suitable for Petrochemical, Mining, Vessels, Boilers, Piping and Duct, Pumps and Valves, Flanges, for Steam, mineral oils, heat transfer oils, hydraulic oil, fuel, water, seawater, freshwater etc.

广泛应用于石化、矿业等的容器、锅炉、管道及泵、阀和法兰上。适应蒸汽、矿物油、变压器油、液压油、燃料、清水、海水等。

9·In large dip Angle mining face, the antis-kid and anti-collapse question on hydraulic support is a key to mining successfully.

在大倾角工作面中，液压支架的防倒防滑问题是工作面能否顺利实现开采的关键。

10·After a long time in research and practice, Dragon Mining Group has recently developed new mineral wheel independent hydraulic changer on mine was put into use in the Wali.

经过长期反复研究、实践，近日龙矿集团自主研制的新式矿车轮对液压拆装机在洼里煤矿正式投入使用。