查询词典 leaching

By the leaching experiment of soil column, the purification of loessial soil to Cr and its migration characters were studied from dynamic researches.

通过土柱淋滤试验，从动态角度研究了黄土性土壤对Cr的净化作用及迁移规律。研究结果表明：黄土性土壤对Cr是逐步地均匀地吸附的，直到吸附饱和。

The invention comprises the procedures that:(1) a horizontal section (13) and a vertical section (14) of a horizontal well (10) are formed in a manto (30) by the horizontal well technology;(2) injection wells (11) and recovery wells (12) which are alternately spaced and arranged are formed;(3) mining is carried out according to the traditional in situ leaching method.

本发明包括下列步骤：①通过水平井工艺在矿层(30)中形成水平井(10)的水平段(13)和垂直段(14)；②形成交替间隔排列的注入井(11)和采收井(12)；③按照传统原地溶浸方法进行采矿。

The electrochemical oxidation of marmatite should not be neglected in the sulfuric acid leaching.

在铁闪锌矿硫酸浸出过程中，其电化学氧化作用不容忽视。

The experimental results proved the intermediate product of H2S in the leaching of marmatite. The results also showed that oxygen, element sulfur disperser as well as chloride ions could accelerate the electrochemical oxidation of marmatite in sulfuric acid. The electrochemical oxidation of sphalerite was retarded but that of marmatite was promoted with the increase of acidity.

结果表明：在铁闪锌矿浸出过程中有H2S中间产物生成；通氧、元素硫分散剂以及氯离子引入浸出体系均能明显促进铁闪锌矿的电化学氧化；随硫酸浓度升高，铁闪锌矿的电化学氧化不断加强而闪锌矿的电化学氧化受抑。

Marmatite ; pressure leaching ; iron kinetics ; reaction activation energy ; diffusion activation energy

高铁闪锌矿；加压酸浸； Fe动力学；反应活化能；扩散活化能

Micronucleus test results exhibited that significant differences in micronuclear rates were determined between 0.4 mL bone cement and 0.4 mL microsphere-coated bone cement groups and negative control group, but no significant difference was detected among other groups. This revealed that this microsphere-coated bone cement leaching liquor did not show significant cell heredity toxic effects. Nevertheless, microsphere-coated bone cement in the high concentration and high dosage groups exhibited low toxic effects, mainly showing increased hemolysis rate and micronuclear rate. Thus, it was necessary to control the dosage and concentration of microsphere-coated bone cement.

微核实验结果显示除0.4 mL骨水泥组和0.4 mL微球骨水泥组的微核率与阴性对照组差异有显著性意义，其余各组差异无显著性意义，说明该微球骨水泥的浸提液无明显细胞遗传毒性作用，但是高浓度和高剂量组的微球骨水泥仍有较低的毒性作用，主要表现为溶血率和微核率的提高，因此在应用时要适当控制微球骨水泥的剂量和浓度。

The authors have summarized relevant data studied by overseas scientists and suggested the definition of chalky texture formation as "Chalky texture formation refers to that magnesium calcite and aragonite are transformed into the framework of micrite and microspar of low-magnesium calcite via neomorphism, and result in and maintain intercrystalline pore and throat networks in it; enhanced chalky texture formation refers to that the micrite and microspar are successively subjected to dissolution and leaching, so that the secondary network of solution voids is formed".

综合各国学者的有关研究资料，建议将白垩状结构化定义为：&碳酸盐沉积物和碳酸盐岩中的镁方解石和文石在不同成岩阶段通过新生变形而转变成低镁方解石微晶和微亮晶格架，并在其中产生和保存晶间孔喉网络的作用；强化白垩状结构化是指微晶和微亮晶格架受到进一步溶蚀和淋滤，从而形成次生溶蚀孔隙网络的作用&。

The process of selective reduction roasting- ammonia leaching is adopted to extract nickel,cobalt and recover iron from low grade nickeliferous laterite ore.

本研究采用选择性还原焙烧—氨浸工艺从低品位红土镍矿中综合提取镍、钴、铁，重点介绍了该工艺氨浸的试验研究。

Selective reduction roasting ; ammonia leaching ; nickeliferous laterite ore ; nickeliferous iron ore ; nickel and cobalt extraction

选择性还原焙烧；氨浸；低品位红土镍矿；镍铁矿；镍钴提取

The process of selective reduction roasting-ammonia leaching-solvent extraction-electrowinning is adopted to extract nickel,cobalt and recover iron from low grade nickeliferous laterite ore.

本研究采用选择性还原焙烧-氨浸-溶剂萃取-电积工艺从低品位红土镍矿中综合提取镍、钴、铁，重点介绍了采用煤作还原剂，选择性还原焙烧的试验研究。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。