Small scale tests and verification tests of magnesia reduction concentrating process for treating rich lean ore mixture from Longshou Mine in Jinchuan were carried out.

The Engineering Geology and Hydrogeology Investigations of the Lean Ore Zone in the NO.2 Mining District of Jinchuan Non-ferrous Metals Corporation

金川二矿贫矿工程地质与水文地质调查研究

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There are huge potential in utilization of lean ore in China, and utilization of lean ore is an inevitable choice for guaranteeing resources safety.

我国大宗贫矿资源利用潜力巨大，贫矿资源利用是保障资源安全的必然选择。

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Solution mining is a available method to extract gold from lean ore, relic, waste dumps and tailings.

溶浸采矿是从贫矿、残矿、废石堆、尾矿中提取金的一种行之有效的方法。

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Optimization Design and Numerical Analysis of Excavating-filling Engineering for Lean Ore in Jinchuan No.2 Minefield

金川二矿贫矿开采充填设计优化及数值分析

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Description is made of the development and utilization of Ni lean ore resource and mine production in Jinchuan Mine.

金川公司龙首矿西采区贫矿开采研究，关系到贫矿开采能否可行，是金川做大做强的关键之一。

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Mineral resources in China have the next characteristics: there are many lean ore and few rich ore;

我国矿产资源的特点是贫矿多，富矿少；

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Study on a new process for pre-concentration of coarse lean ore

贫矿粗粒预选新工艺的研究

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Significance of Comprehensive Utilization of Ni Lean Ore Resource in Jinchuan Mine

金川镍贫矿资源综合利用的意义

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Base Stability of Jingchuan Lean Ore Area Mining by Natural Caving Method

金川贫矿区自然崩落法采场底部结构的稳定性

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Among 8 patients treated with tow-way cannulated compressive screw, 4 excellent, 2 good, 1 fair, 1 poor, the rate of excellent and good was 75.0%.

双头空心加压螺纹钉固定8例中优4例，良2例，可1例，差1例，优良率为75.0%。

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Among 27 patients treated with proximal femoral anatomical plate, 15 had an excellent result, 8 good, 3 fair, 1 poor, the rate of excellent and good was 85.2%;

股骨近端解剖型钢板固定27例中优15例，良8例，可3例，差1例，优良率为85.2%；

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To preserve the same twist, the torque should also be the same. Poor testicular salvage rate was the result of delayed presentation at this department in most cases.

为保持相当的扭转，扭矩也应该具有相同的比例。

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According to Merchant grade, 14 were evaluated as excellent, 3 as good, 3 as fair and 2 as poor. The rate of excellent and good results was 77.3%.

按照Merchant评分标准对术后功能进行综合评分，优14例，良3例，可3例，差2例，优良率为77.3%。

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In 9 cases of old fractures, 2 were excellent, 3 good, 2 fair and 2 poor. The rate of excellence and goodness was 55 6%.

9例陈旧性骨折，优2例，良3例，可2例，差2例，优良率556%。

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Several countries in Latin America, where the UN thinks one in three people is poor and the rate of poverty reduction is slowing, are looking at it with interest.

拉丁美洲的几个国家也饶有兴趣地关注着这种测量方法。根据联合国的数据，这几个地区的贫困人口比例达三分之一，而且减贫速度正在放缓。

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Among 23 patients treated with Gamma nail: 13 got excellent result, 7 good, 2 fair, 1 poor, the rate of excellent and good was 87.0%;

Gamma钉固定23例中优13例，良7例，可2例，差1例，优良率为87.0%；

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【 Results 】 Perinatal poor prognostic rate in the cases with abnormal reaction to NST was 37.2%, with-out significant difference in comparison with the normal ones ( 38.5%, P> 0.05).

结果无负荷试验异常者围生儿预后不良率为37.2%，与正常者（38.5%）比较无明显差异（P>0.05）。

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Single-copy routing delivers message through multiple forwarding, having poor delivery rate and reliability, while the Multiple-copy routing copy and forward message through multiple paths, having higher delivery rate.

单副本路由通过节点间转发来实现报文传递，投递率和可靠性较差。多副本路由通过复制转发的方式多路径地传输报文，具有较高的报文投递率。

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An effort to expand forest cover across north China to slow desertification, known colloquially as the Green Great Wall, has suffered from a poor survival rate of the trees planted.

为了延缓荒漠化进程，中国北部采取了扩大森林覆盖面的措施，即人们所谓的“绿色长城”，但是种在那里的树木成活率很低。

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The highest rate was 90.49% in 2002. The poor eyesight rate in female students was remarkable higher than that in male students for a period of 15 years ( P < 0.01).

15年中，女生视力低下率均显著高于男生（P

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