亚铁的

The effects of some conditions on bacterial ability to oxidize ferrous ion are investigated.

研究了温度、pH、培养基中Cu~(2+)浓度对细菌氧化亚铁能力的影响。

Color. The color of the skin is determined by melanin, oxyhemoglobin, reduced hemoglobin, and carotene.

颜色。皮肤的颜色由黑色素、氧合血红蛋白、亚铁血红蛋白和胡萝卜素等决定。

A third example is the ferrous sulphide which we mentioned in the previous chapter.

第三个例子是前章提到的硫化亚铁。

Metal complexant s such as ferrous complexant and cobaltic complexant are common used in this process.

液相络合法常用的金属络合剂有亚铁络合剂和钴络合剂等。

The electroless copper plating was studied in a bath consisting of glyoxylic acid as reducing agent,Na2EDTA as complexing agent,both 2,2′-dipyridyl and K4Fe6 as additives,focused on the influence of the additives on the deposition rate,as well as on the composition,structures and surface morphology of the deposits.

以乙醛酸作还原剂、Na2EDTA为络合剂、2，2′-联吡啶和亚铁氰化钾作为添加剂组成化学镀铜体系，研究了两种添加剂对化学镀铜速率、镀层表面形貌、组成和结构的影响。

Ammonia and nitrate, ferrous ion, sulfide, various gases and organic acids are sequentially formed, corresponding to the activities of aerobic and facultatively anaerobic bacteria, sulfate-reducing bacteria, and methane-producing bacteria with the development of reduction reactions.

在还原过程中，随着好氧细菌、兼性厌氧细菌、硫酸还原菌和甲烷菌的活动，相继形成氨、硝酸根离子、亚铁离子、硫化物、气体物质及有机酸。

Using the phases of ferrum and the parameters above to divide the subzones of interstratified-oxidation zone has both theoretical and practical significance in prospecting for u-ranium deposits of this type.

应用铁物相特征及其以上比值，可以简捷地对层间氧化带进行亚带的划分，这对指导铀矿勘查具有重要理论和实践意义。

In 2006 to invest 200 million yuan into the waste acid treatment equipment has been put into operation the production of ferrous sulfate heptahydrate (FeSO4.7H2O) over a hundred tons, is now on sale.

于2006年投资200余万元建成的废酸处理设备投入运行以来已生产七水硫酸亚铁（FeSO4.7H2O）百余吨，现已销售。

Objective:To develop a method for determination of metasilicic acid(H2SiO3) in mineral water at the wavelength of 350 nm and study on the ferrous ion′s interference elimination.

目的：通过实验找出在波长350 nm处测定矿泉水中偏硅酸，建立消除亚铁离子干扰矿泉水中偏硅酸测定的分析方法。

The results show that contribution of Thiobacillus ferrooxidans bio-film to SO_2 removal is primarily indirect oxidation, and secondary direct oxidation.

结果表明，氧化亚铁硫杆菌生物膜对脱硫的贡献以间接催化氧化作用为主，直接作用为辅。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。