铁

The trace of red O phenanthroline Fe indicates: Fe 2+ was absorbed by roots and transported to stem, main vein of leaves when iron fertilizer was root inserted.

整根对铁的吸收已有较多的研究，铁可以Fe2 +、Fe3+或铁的螯合物形式被植物吸收。

It is found that the initial pH,ρ(H_2O_2) and ρFe~(3+ of the solution have significant effects in this photooxidative process. The removal percentage of COD_ is higher under solar irradiation than under UV irradiation. Under the selected conditions, using solar/H_2O_2/ferric oxalate complexes to treat the landfill leach has good efficiency. landfill leach ; ferric oxalate ; photocatalysis

已有的研究表明，Fe3+羧酸盐络合物具有光催化降解有机物的性能[1-3]；当草酸铁络合物体系中存在一定量的H2O2时，在太阳光或紫外光照射下，可发生类Fenton反应产生羟基自由基[4]，而草酸铁络合物可在一定程度上循环利用，使Fe3+和C2O2-4可以重新形成草酸铁络合物：2[Fe(C2O4)n](3-2n)hν2Fe2++(2n-1)C2O42-+2CO2(1)Fe2++H2O2

By using the hydrochloric acid pickling wastewater and scrap iron asraw materials ,the polysilicic acid - polyferric chloride flocculant isprepared under different conditions.

以盐酸酸洗废液和废铁屑为原料，制备了聚硅酸聚合氯化铁复合型絮凝剂，研究了聚铁中铁浓度、聚合硅酸浓度、聚合硅酸pH值、n∶n及复合熟化时间等因素对絮凝性能的影响。

Effects of iron and two nitrogen forms on remobilization of iron from different iron pools in maize plants were studied in a split root system in nutrient solution under controlled conditions.

采用分根技术、营养液培养方法，研究缺铁条件下供应不同形态氮素对玉米苗期体内不同铁库中铁再利用的影响。

Shen iron walnut handle, less lines, but the value of some very special collection from the many walnut walnut iron, such as Sparganium, Schnabelia, olecranon, triple valve, snakeskin pattern, iron ingots, tripe, etc.

铁核桃手感沉，纹路较浅，但一些极具收藏价值的异形核桃多出自铁核桃，如三棱、四棱、鹰嘴、三联瓣、蛇皮纹、铁元宝、牛肚、铁观音等。

Technology of laser hardening surface of diesel locomotive camshaft using austenite-bainite nodular-iron instead of 20Cr has been systematically elaborated on,which includes a series of measurements such as mechanism of choosing austenite-bainite nodular-iron and it's pretreatment,ascertaining laser technological parameter,spiry laser scanning strip,designing four-motor control devise using microcomputer and so on.

阐述用奥贝球铁代替 2 0Cr制造内燃机车凸轮轴的激光表面强化的工艺过程，其中包括奥贝球铁的选择、激光工艺参数的确定、螺旋激光扫描带、四联动微机控制装置的设计等。研究表明，用奥贝球铁代替 2 0Cr制造凸轮轴，经激光表面强化后，能获得更均匀的硬度分布和更高的硬度值。

The mechanism of abnormal swelling caused by CaO is that Ca(superscript 2+) in crystal lattice of iron oxide accelerates the formation and growth of metallic iron whisker during the reducing procedure from wüstite to metallic iron giving abnormal swelling.

对CaO导致球团异常膨胀的机理进行了探讨：在浮氏体还原成金属铁的过程中，固溶于铁氧化物晶格中的Ca(上标 2+)会促进&铁晶须&的生成与发展，导致球团产生异常膨胀。

Bacterial and chemical oxidation of gold-bearing pyrite gives rise to not only ferric sulfate and sulfuric acid but also ferrous sulphate and low-valence oxide of sulfur. The potential in the system is too low to dissolve native gold to form Au(SO4)2- Experiments indicate that gold does not dissolve in sulfatic iron solution.

含金黄铁矿在细菌氧化、化学氧化过程中，除生成高铁的硫酸盐和硫酸外，还生成了亚铁的硫酸盐及硫的低价氧化物，体系中的电位较低，距溶解自然金呈Au(SO_4)_2~-所需电位甚远，实验表明，金不溶于硫酸铁溶液中。

Effect of sulfurization time, water content, oil as well as sulfur on spontaneous combustion of iron sulfide is investigated on the same sulfide formed from Fe2O3. It indicates that long sulfurization time, some oil, sulfur as well as good ventilation condition could accelerate oxidation and temperatures rise, but uncertain water content and poor ventilation condition lessen the spontaneous combustion tendency.

以Fe2O3的硫化产物为典型样品，研究了硫化时间、水分、油品、硫及通风条件对硫化铁氧化升温特征的影响，结果表明，硫化时间长，适量的油品和硫以及良好的通风条件能够加速硫化铁升温过程，而一定的水分及不良的通风条件则降低了硫化铁的自燃倾向性。

They then left the transformation to complete itself, and it would nottake less than ten or twelve days for the sulphuret of iron to be changedto sulphate of iron and the alumina into sulphate of alumina, two equallysoluble substances, the others, flint, burnt coal, and cinders, not beingso.

硫化铁变成硫酸铁和矾土变成硫酸铝的过程至少需要十天到十二天，他们经过上述的安排以后，就让它自己去变化，不再照料了。硫酸铁和硫酸铝都能在水中溶解，可是其他如火石、焦炭、灰渣等是不能在水中溶解的。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。