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1)  development ofHunan's rare earths
湖南稀土开发
2)  developing of rare earth mine
稀土矿开发
1.
Irrational developing of rare earth mine in Chongdonggou watershed,Xinfeng County,induced to serious sediment silting in the river channel,and the total silting sediment was 30 193 t in the 7 500 m river channel estimated by measuring the silting section.
调查结果发现,河流中淤积的泥沙主要来源于稀土矿开发的尾矿流失;土壤流失量高到99 730 t/km2,年平均侵蚀模数为34 000 t/(km2。
3)  Hunan western development
湖南西部大开发
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4)  China development bank (Hunan Branch)
湖南开发银行
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5)  Hunan soil
湖南土壤
1.
To Study the characteristics of adsorption and desorption of S042- and /or NO3- in Hunan soil and the effects on soil acidification, the three tested soils were treated with different concentrations of (NH4)2SO4 and /or NH4NO3 solutions and different pH value solutions through a continuous batch experiment under laboratory conditions.
为探讨湖南土壤对SO_4~(2-)、NO_3~-的吸附和解吸特征及其这种吸附和解吸对土壤酸化的影响，在实验室条件下，通过连续浸泡试验使用不同浓度(NH_4)_2SO_4、NH_4NO_3溶液和不同pH值溶液对三种供试土壤进行处理，得出如下结论。
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6)  development of hunan province
湖南发展
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补充资料：包头稀土一厂稀土合金车间


包头稀土一厂稀土合金车间


　　包头稀土一厂稀土合金车问
　　
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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