leaching

Besides, activating bentonite by acid leaching and microwave has also been investigated.

另外, 对膨润土的酸浸和微波活化做了相关研究.

The lack of humus and the excessive leaching make this soil almost useless for agricultural purpose.

缺少腐殖质和过度淋滤使这种土壤对农业几乎无用.

Effects of Glyphosate on Leaching of Cu and Zn from Heavy Contaminated Soil

草甘膦对重金属污染土壤中铜、锌淋溶的研究

Research on thermodynamic criterion of oxidants in gold thiourea leaching

硫脲浸金过程选择氧化剂的热力学判据研究

The research includes technological mineralogy, leaching principles, methods, measures and effects.

内容包括工艺矿物学研究 、 浸出原理 、 浸出方法 、 浸出措施及效果.

Thermodynamic Criterion for Oxidant Selection in Thiocyanate Gold Leaching

硫氰酸盐浸金体系选择氧化剂的热力学判据

The Species and Activity Research of Chemotroph Bacteria Using in Uranium Leaching by Bacteria

细菌浸铀中的化能自养菌种类及活性研究

The sulfhydryl fibre is regenerated by diluted acid leaching.

巯基纤维用稀酸淋洗再生.

Losses by denitrification and leaching appear to be less affected.

反硝化损失和淋失显然很少受到影响.

The effectiveness of various type leaching agent studied and experimented.

试验研究了多种助浸剂的助浸效果.

Experimental study on improvement of the leaching rate of low grade gold by the use of ammonium thiosulfate

氨性硫代硫酸盐对提高低品位金浸出率的试验研究

The thermodynamic process of acid pressure leaching of high iron sphalerite is studied and three ε-pH figures of ZnS-H_2O system, FeS-H_2O system and ZnS-FeS-H_2O system at 150 ℃, 1 MPa have been drew, respectively.

对高铁闪锌矿高压酸浸的热力学过程进行了研究，并绘制了150℃、氧气压力为1MPa时，浸出体系中ZnS-H2O系、FeS-H2O系、ZnS-FeS-H2O系的电位-pH图。

Leaching of gold is a nwe method for non-cyanidation leaching gold.

碘化浸金是一种新的 非 氰化浸金方法.

Studies on Moderate Thermophile Intensifying Pentlandite Leaching

中等嗜热菌强化镍黄铁矿浸出的研究

Sulfuric acid leaching technology of a nickeliferous spent material was studied.

研究了含镍废料的酸浸工艺.

Thermodynamic Criterion for Gold Leaching with Thiosulfate

硫代硫酸盐浸金过程的热力学判据

Indium leaching rate was more than 90 % at optimum conditions.

在适宜的条件下,铟的浸出率达到90%以上.

The goodness has been leaching out during the recent heavy rain.

在最近的大雨期间,土壤的肥力被冲走了.

Conclusion Clinical case teaching is superior to conventional methods in Paediatrics leaching.

结论与传统教学方法相比,序贯病案教学更加着重培养学生临床思维能力和分析问题、决问题的能力.

After thermodynamic and kinetic analysis of process of wolframite and scheelite leached by acid, we found the difficult of leaching wolframite was determined by the dynamic conditions.

在对黑钨矿和白钨矿的酸浸体系进行热力学和动力学分析后，认为黑钨矿难浸出是由动力学条件决定的。

The favorable entrapment zone of the coal-bearing strata is mainly distributed in the deeply-buried area with thick source rock, coarse facies belt and fresh water leaching area below the unconformity.

煤系地层有利储集带主要分布于烃源岩厚度大的深埋藏区、粗相带区及不整合面以下的淡水淋滤区。

Thermodynamic criterion for silver leaching with cyanide

氰化浸银过程的热力学判据

According to thermomechanical analysis in basis theoretical research, it is said that vanadium of quadrivalence and trivalence coexist in leach liquor and the influence factor of the leaching process can be worked out based on correlation kinetic equation.

由浸出基础理论研究中的热力学和动力学分析可知，浸出液中的钒是五价为主四价和三价伴存。

Unless leaching occurs, nitrogen should not be applied after lay-by.

除非发生淋洗, 氮肥不应在烟草田间作业结束后再施用.

Hemimorphite was a refractory oxidized mineral. These basic thermodynamic data played an important role in the study of leaching process.

异极矿是一种难处理的氧化锌矿物，其浸出过程热力学研究的前提条件是获得异极矿的基础热力学数据。

Through bacterial oxidation, the gold leaching rate comes from 53.4 % to 92 %.

通过细菌预氧化 、 金的浸出率从534%提高到92%以上.

A starch made by leaching and drying the root of the cassava plant; the source of tapioca; a staple food in the tropics.

木薯植物的根部沥滤和晒干后制成的淀粉，是食用淀粉的来源，热带地区的一种主要食物。

The deep oxidation and groundwater leaching solubilizes much of the loosely bound uranium.

深部氧化和地下水淋蚀使大部分固定得比较松散的铀溶解.

Thecontent of NO _ 3-N was determined by leaching simulation experiment in laboratory.

室内模拟试验采用淋洗法,测定淋洗液中的硝态氮含量.

A coupling model of leaching and separation of coordinated extraction for sphalerite with complex solvents composed of tetrachloroethylene ( C_2Cl_4), 2-ethylhexyl phosphate ( P204) and surfactant in oxidation reagents of H_2SO_4-HNO_3-O_2 was put forward.

提出了闪锌矿在H2SO4HNO3O2中的氧化浸出与以四氯乙烯和磷酸二（2乙基己基）酯组成的协同萃取3剂和表面活性剂的分离耦合操作模式。