Arsenic AND WELL water: The world's worst toxic problems are not confined solely to industrial pursuits.Arsenic leaching into groundwater afflicts some 750,000 people, largely in south Asia.
含砷的井水:世界上最严重的有毒问题不只局限与工业,浸析在地下水的砷影响了主要分布在南亚地区的约75万人。
Biochar applied to Australian fields and left for a number of months cut such emissions by more than 70 percent as well as preventing nitrogen and ammonia from leaching out of the soil in water.
生物炭在澳大利亚使用后,几个月后,农田的碳排放量剧减70%多,与此同时,它还能阻止土壤里的氨氮溶入水体。
Arsenic AND WELL water: The world's worst toxic problems are not confined solely to industrial pursuits. Arsenic leaching into groundwater afflicts some 750,000 people, largely in south Asia.
含砷的井水:世界上最严重的有毒问题不只局限与工业,浸析在地下水的砷影响了主要分布在南亚地区的约75万人。
Though the leaching bacteria can well adapt to the ore leaching environment, measures for strengthening the leaching should be taken due to the slow leaching speed and rate of copper.
尽管浸矿细菌能很好地适应浸矿环境,但铜的浸出速度偏慢、浸出率偏低,有待于采取强化浸出措施。
To improve the flow rate of well is of importance to in-situ leaching of uranium in low permeable deposits.
提高钻孔涌水量是低渗透砂岩型铀矿床地浸开采的重要内容。
Status of domestic hole drilling and well building in mines where leaching technology is used is introduced.
介绍了国内在地浸采矿中钻孔施工工艺及成井技术,详细论述了成井过程、工艺参数及洗孔方法。
The experimental results indicate that ultrasound enhances the process, resulting in the increase of output current and potential as well as the leaching efficiency.
研究结果表明,超声作用使发电浸出输出电流和电压一定程度地升高,同时金属离子的浸出率也相应得到提高。
The copper ore leaching had been put into practice with a history of about 1000 years and was once well-developed in Soong Dynasty (960-1279 A. D. ) .
我国铜矿石浸出的生产实践距今已有约一千年的历史,并曾在宋朝(公元960—1279年)时一度十分发达。
The properties of Yun Long refractory silver-copper ore are summarized. The feasibility as well as the pilot test result of the acid leaching-sulfide precipitation flotation process is demonstrated.
简述了云龙难选氧化银铜矿的性质,论证了酸浸—硫化沉淀浮选工艺的可能性及工业试验结果。
The invention provides a low-cost and high-efficient agentia for leaching petroleum-polluted soil as well as a preparation method and an application thereof.
本发明提供一种低成本,高去油率的石油污染土壤淋洗药剂、其配制方法和应用。
The invention provides a low-cost and high-efficient agentia for leaching petroleum-polluted soil as well as a preparation method and an application thereof.
本发明提供一种低成本,高去油率的石油污染土壤淋洗药剂、其配制方法和应用。
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