Based on field investigation the main causes of No 2 ore pass failure are analysed in this paper.
本文通过详细的现场调研，分析了造成2号溜井垮冒的主要原因。
Within the ore pass, rock & ore cause different frictional forces that can be divided into 3 type of static pressure and stress.
根据矿岩在溜井内产生摩擦阻力的不同，矿岩对溜井底部静压力可分为3种状态。
Ore pass is extensively used in underground mining, but frequently troubles or stoppages are happened and up to now there is no quite satisfactory way to clear them.
溜井广泛用于矿山井下开采。经常发生的溜井堵塞故障，至今还没有妥善的处理办法。
What the prospectors found at Mountain Pass was an igneous ore containing mainly carbonate, sulphate and silicate phases.
勘矿工人们在帕斯山发现的矿石标本是火山熔岩，其主要成分是碳酸盐、硫酸盐和硅酸盐。
Molycorp intends to produce 3, 000 to 5, 000 tons of rare earths from stockpiled ore at its Mountain Pass mine this year and has big expansion plans.
Molycorp公司计划今年以它在帕斯山矿井储存的矿石生产3000到5000吨稀土，同时有了大的扩建计划。
The content of the research on changing the high shaft into a main ore-pass in Yong-Sha-Ba mine has three parts.
用沙坝矿高大副井改主溜井的研究内容主要分为三个部分：溜井放矿规律研究与振动出矿及相关技术的应用研究；
Air leak and dust pollution in ore drawing through long pass in underground mine threaten the underground prodution safety.
地下开采矿山高溜井卸矿过程中的漏风及粉尘污染威胁矿山井下的安全生产。
The paper introduces a continuous car type furnace for direct reduction of iron ore. Coal-containing iron ore pellets are laid on cars and carried to pass through furnace to be heated and reduced.
介绍一种用于铁矿直接还原的台车连续炉，含碳球团料层铺在台车上并通过炉膛进行焙烧和还原。
The paper introduces a continuous car type furnace for direct reduction of iron ore. Coal-containing iron ore pellets are laid on cars and carried to pass through furnace to be heated and reduced.
介绍一种用于铁矿直接还原的台车连续炉，含碳球团料层铺在台车上并通过炉膛进行焙烧和还原。
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