大幅度

Meanwhile, the concentration of Pb,Zn and other heavy metals is rather high in the oxidation zone and decreasesdownward to levels that are unbelievably low for Pb-Zn mine tailings. Theseobservations suggest that heavy metals should be re-immobilized by secondaryminerals, rather than primary minerals, in the oxidation zone, and could be leachedout from suboxic environment due to low rate oxidative dissolution which preventsthe precipitation of secondary minerals in significant amount. Thus, cover scenarioswhich establish a suboxic environment beneath the cover layer might not always beeffective in preventing heavy metal release from mine tailings.Sequential extraction studies indicate that, in addition to heavy metal leaching,oxidation of the mine tailings increased the mobility of residual Zn, and Cu, while Pb remains immobile due to the formation of anglesite (PbSO4). Using the seven-step extraction technique developed by Dold (J. Geochem. Explor., 2003, 80: 55-68), galena dissolves in significant amount at step 2 most probably due to the strong complexing of Pb2+ by acetate, while other metal sulfides dissolve at step 6, which suggest that this extraction technique could not be used to evaluate the mobility of lead in natural environment

重金属含量均低于新鲜尾矿，但以硬化层中的含量最高(Pb、Zn含量分别为0.47%和0.93%)，往下大幅度降低，表明尾矿风化过程中形成的次生矿物对Pb、Zn等重金属元素有较强的固定作用，而次氧化带的淋溶作用造成了金属元素的大量流失；(4)与新鲜尾矿相比，硬化层中铅的可迁移性大大降低，硬化层之下尾矿样品中铅的可迁移性也不同程度降低，这是由于硫化物氧化产生的硫酸根与尾矿中的铅反应形成铅矾(PbSO_4)的缘故；(5)氧化作用使尾矿中的zn、Cu等重金属的可迁移性不同程度地增大，其中对锌的可迁移性影响最大，铜的可迁移性与铁比较相似，铅则容易与硫化物氧化形成的SO_4~(2-)反应形成铅矾(PbSO_4)；(6)为了减少尾矿污染和修复矿山环境，人们提出了各种不同的尾矿覆盖方案，本文的研究结果表明，这些方法不一定能够有效地阻滞污染元素的迁移。

Application of the proposed method can lead to the anticipant experimental results and also decrease the experimental work largely.

该法的应用不仅能达到预期的目的，而且可以大幅度减少所需的试验次数。来源：ABCd7论文b4网www.abclunwen.com

Maori society was devastated by war, disease and the loss of their economic base, reducing their population to a fraction of its former size, now comprising less than 12 percent of all people in Aotearoa.

由于战争、瘟疫和土地的丧失，毛利民族人口大幅度下降，现在只占全国人口的12%。毛利语言和文化几近灭绝。

The oxidation speed and rate of pyrite and arsenopyrite are highly improved after the seperated and purified vaccine was put into the 9K culture media to be trained.

分离纯化后的菌种在加入毒砂和黄铁矿的9K培养基中驯化后对毒砂和黄铁矿的氧化速度和氧化率都有较大幅度的提高。

Especially in new manufacturing environment, many artificialness have been already replaced by machine, and the comparison that direct cost of labor has greatly reduce, but the comparison of fix manufacturing expense shares total cost has significantly exaltation .

特别是在当今新的制造环境下，许多人工已被机器取代，直接人工成本所占比例大为减少，而固定制造费用占总成本之比例却大幅度提高。

For KISC, the technology shall firstly use high-phosphorus ironstone efficiently which can not completed by the current picking technology or blast furnace process, to greatly reduce ironstone cost that occupies the most proportion of iron and steel production cost, easy cost pressure caused by international and domestic shortage of production materials, induce transportation risk, to assuringly supply KISC with a great deal of cheap raw materials and create great economic profit; Secondly it shall promote KISC to update its products, especially high-added-value products of lowest phosphorus and lowest sulfur, to enhance its ability to adapt market and gain profit; Thirdly it shall improve technical and economic indexes of blast furnace and converter, and be helpful for efficient blast smelting and less-slag melting of converter process; Furthermore the technology shall greatly promote the stable operation of melting process and the control of the production of high-temperature and high-quality casting blank, to realize efficient continuous casting and continuous casting and rolling to improve KISCs production intensification; Finally the technology shall distribute melting functions and optimize production processes, to improve the auto-control of melting and continuous casting, to realize the integrated management of technology, equipment, production organization and management, logistic management, and production running of smelting, continuous casting and rolling.

对昆钢而言，该技术的应用，首先可以经济有效地实现现有采选技术及高炉冶炼所不能完成的高磷铁矿石的利用，大幅度降低在钢铁生产中占绝大比例的原料成本，缓解国际国内生产原料紧张而造成的成本压力，为昆钢创造巨大的经济效益；其次可以促进昆钢产品的升级换代特别是高附加值超低磷、超低硫钢种的开发，增强昆钢的市场适应能力和效益创造能力；再次可促进高炉及转炉技术经济指标的改善，降低生产成本，且利于转炉生产实现高效吹炼和少渣冶炼；此外，该工艺能显著提高冶炼环节的平稳顺行及高温、高质量铸坯生产的可控程度，可实现高效连铸和连铸连轧生产，提高昆钢生产的集约化程度；最后，该工艺能实现冶炼功能的分工和生产流程的优化，可提高昆钢炼钢与连铸生产的计算机自动控制程度，有效促进炼钢—连铸—轧钢的工艺、设备、生产组织和管理、物流管理、生产操作等环节的一体化管理的实现。

In the other hand, the main cause of the craze and deformation of the house of middle-ahead of the landslide is the bank astaticism for the Qu River's water-level rising and dropping at the time of flood season and the local slippage for the rain.

而滑坡体中前部房屋开裂和坡体的变形破坏则主要是由于汛期渠江水位的大幅度升降导致库岸边坡失稳以及降雨诱发坡体局部滑动。

There has been a significant reduction in transaction costs and asymmetric information in recent decades.

有了大幅度降低交易成本和信息不对称，近几十年来。

But at the same time, the development of economy is at a cost of the destruction of environment.

首先，世界范围内生态环境的不断恶化是技术性贸易壁垒持续发展的主要原因。20世纪以来，随着工业的高速发展和科学技术的进步，世界各国经济都不同程度的在原有基础上实现了很大的增长，同时人们的生活水平也得到和大幅度的提高，这是值得肯定的。

They say Chinese goods are sold at a sharp "discount" in the US.

它们说中国的商品在美国被大幅度的"打折"销售。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。