barren layer是什么意思

网络释义

用法例句

Technical measures for shaft construction preparation on deep waste rock accumulations;

深厚废石堆积层上进行竖井施工准备技术措施

In order to study the effect of waste rock piling on water environment,the character of water quality change after the waste rock is dipped into water is analyzed by eluviation experiment.

为了研究废石堆砌对水环境的影响,通过对废石做淋溶实验,分析了出入水的水质变化规律,对废石衍生环境效应的过程、机制、影响因素方面进行讨论,揭示了人们容易忽视的酸性水中硫酸根、总硬度、微量金属离子的动力学变化机理,指出矿山废石对水环境的污染不至限于使水质酸化,硫酸根、总硬度也会大幅度提高,废石堆放应充分考虑当地的地理气候及水文条件,合理堆放,减少污染。

Because of the lack of filling materials, and to reduce the production cost, a waste rock filling system in the underground was constructed.

为了解决井下充填料不足 ,并降低生产成本 ,在井下建立了废石破碎充填系统。

According to the conditions of Dongdashan Iron Mine,the cut and fill with mullock is put forward and used in the thick-slope iron ore and the industrial test has been going on.

根据矿体开采技术条件和矿山的实际情况,提出了上向水平分层废石充填法并进行了工业试验,结果表明,采矿回收率提高到83。

Treatment of petrochemical wastewater using integrative A/O swim-bed process;

一体式A/O摇动床工艺处理石化废水

Comparison of petrochemical wastewater by MBBR and ASP;

MBBR与活性污泥法处理石化废水的比较

Biofilm formation on the spherical carrier of polyurethane foams treating petrochemical wastewater;

用于石化废水处理的聚氨酯泡沫球形载体的挂膜方法

The behaviour of this waste or broken rock is similar to that of a clean sand or gravel.

这种废石或碎石的行为与洁净的砂石或砾石相类似。

Earth, rocks, or clay excavated in mining.

废石在采矿过程中挖掘的土、岩石或粘土

Application of Paste and Mullock Unite Filling with Soft Partition

柔性隔墙膏体废石联合充填应用研究

skimming of waste water

自废水表面上撇取石油

Wang Anshi’ "Hu Tian Shu"and "Changing Lake into Field";

王安石·《湖田疏》·“废湖为田”

TREATMENT OF WASTEWATER FROM LIMESTONEGYPSUM FLUE GAS DESULFURIZATION IN POWER PLANT

电厂石灰石-石膏法湿法烟气脱硫废水处理

Enhanced Bio-contact Oxidation Method to Treat Petrochemical Wastewater by Tourmaline

电气石强化生物接触氧化法处理石化废水

Vegetation Dynamics at Early Natural Recovery Stage of Abandoned Quarry of Karst Hills

岩溶石山废弃采石场自然恢复早期的植被动态

an obsolete gunlock using flint and a revolving wheel.

用燧石和旋转轮的废弃的手枪。

What a waste, using so)much ore!

什么一个废料,这么使用)很多的矿石!

Study on Oxidation of Coking Wastewater by Manganese Oxide Mineral;

氧化型锰矿石氧化焦化废水实验研究

Study on the Treatment of Petrochemical Wastewater Using A/O Integrative Swim-bed Process;

一体式A/O摇动床处理石化废水的研究

Research on Landscape Planning and Rebuilding and Utilization of Quarrying Waste;

采石废弃地景观规划与改造利用研究

Modified Attapulgite and Its Applications to Waste Water Treatment;

改性凹凸棒石及在废水处理中的应用

New Technology Research on the Application of Nano Flocculant in Petrochemical Wastewater Disposal

纳米絮凝剂用于石化废水新技术研究

The Studies on the Ecological Restoration in Abandoned Quarry in Jixi

鸡西矿区采石场废弃地植被恢复研究

Degradation of Cu(Ⅱ)-EDTA Chelated Wastewater by Using Tourmaline/H_2O_2 System

电气石/H_2O_2体系降解Cu(Ⅱ)-EDTA废水的研究

Reaction Characteristics of Ceramic Polishing Waste-Lime System

陶瓷抛光废渣-石灰体系的反应特性