铁

The public research indicates excessively low biologic absorptivity of meal iron may be one of the important factors to the high incidence of IDA.

人群调查表明，膳食铁的生物吸收率过低是缺铁性贫血发病率高的重要因素之一。

He absorption peaks of ferrocene and acetyl ferrocene in polar and nonpolar solution change whenconcentration and temperature change.

作者对二茂铁、乙酰二茂铁在极性和非极性溶剂中吸收峰随浓度及温度的变化进行了研究。

For 0.75-doped compound,in addition to FM,the rare half-metallic bands have been found for the first time with several kinds of FiM structures.

对LaMn1-xCrxO3，一个有意义的特性是，对x＝0.75化合物，除了在铁磁态发现其有半金属能带，还首次在多种亚铁磁结构中发现有这一特性。

Additives rare earths can further improve activity and thermostability no matter Fe or Fe/Mn catalysts. Co adulterant of CeO2 and La2O3 can promote the activity and thermostability of manganeses mixed oxides for the reverse water gas shift reaction.

稀土助剂加入可进一步提高铁基催化剂的活性，无论是单独铁基催化剂还是Fe/Mn催化剂加入稀土助剂后催化剂的活性都不同程度的提高，同时加入CeO_2和La_2O_3助剂可以显著提高Fe/Mn催化剂的活性和热稳定性。

Wetland plants have a series of physiological and anatomical characteristics to adapt flooding habitat, e.g., their root aerenchyma and oxygen-penetrating capability can make the rhizospheric micro-environment be under oxidation condition, resulting in the formation of Fe/Mn plaques on root surface.

湿地植物具有一系列生理和结构上适应浸水环境的特征，如根系的通气组织和渗氧能力，这使得植物根际微环境处于氧化状态，这样土壤中的铁和锰会在植物根表被氧化而形成红棕色的铁锰氧化物胶膜。

For smelting of iron from iron oxide ores; combustion is intensified by a blast of air .

从铁氧化矿石中提炼的铁的溶液；燃烧被空气冲击流加强。

An allotrope of iron that is the same as alpha iron except that it is nonmagnetic; stable between 768 and 906 degrees centigrade.

铁的同素异形体，除不具磁性外与α铁相同，在摄氏度之间保持稳定。

The reduction in switchable polarization of ferroelectric thin film is a major problem in ferroelectric memories.

铁电薄膜开关过程中可反转的极化随开关次数而降低，即铁电极化疲劳，这是铁电存储器应用中遇到的一个大问题。

A series of iron proxies have been suggested to distinguish the redox condition of the paleoocean, by studying iron cycling in the modern ocean. On the basis of this methodology, scientists have reconstructed the redox history of paleoocean since the Archaean as a sequential appearance of the ferrous, sulfidic and oxic ocean.

Raiswell、Canfield、Poulton等通过对现代典型海洋环境活性铁循环研究，提出了一系列用于判别古海洋氧化还原条件的活性铁指标体系，并成功地将太古宙以来的古海洋划分成为含铁的大洋、硫化的大洋和氧化的大洋等3个演化阶段。

The isolated cells are able to orient and migrate to the magnet in artificial magnetic field but could not orient swimming only under the geomagnetic field. Magnetosomes produced by Acidithiobacillus ferrooxidans were range from 40nm to 90 nm according to the results of TEM. Energy dispersive X-ray analysis indicated that extracted magnetic particles consisted of oxygen and iron. The results show that some Acidithiobacillus ferrooxidans cells have weak magnetotaxis and they could be able to be separated by solid-plate magnetophoresis method from others. With the development of this new isolation method, it is possible that we could do deeper research to generate a comprehensive description of the mechanism that how Acidithiobacillus ferrooxidans synthesize the magnetic particles.

实验结果表明，氧化亚铁硫杆菌具有较弱的趋磁性，在人工磁场下会进行趋磁运动，但仅在地磁场作用下不能定向运动，利用固体平板磁泳筛选纯化含有磁性颗粒的氧化亚铁硫杆菌的方法是切实可行的，磁泳分离技术的进一步完善和改进为传统的微生物菌种分离提供了新的途径，为研究纯氧化亚铁硫杆菌菌株胞内磁性颗粒的形成条件及机理提供了前提条件，也为今后从浸矿细菌中分离筛选更多的含有磁性颗粒的菌株打下基础。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。