不含铁的

Two common minerals in this group are dark-colored biotite which contains iron and magnesium and white-colored muscovite in which iron and magnesium are absent.

在这类矿物中，黑色的云母称为黑云母，它内含有铁和镁；而白色的云母称为白云母，它不含铁和镁。

Two common minerals in this group are ark-colored biotite which contains iron and magnesium and white-colored muscovite in which iron and magnesium are absent.

在这类矿物中，黑色的云母称为黑云母，它内含有铁和镁；而白色的云母称为白云母，它不含铁和镁。

A chromatophore that contains a yellow pigment.Containing amyloid deposits, as an organ.

血红素一种深红色的，不含蛋白的含铁物质，是血红蛋白的组成成份，c34h32fen4o4

First of all, this study will be multi-walled carbon nanotubes by chemical oxidation process purified so it can be modified to deal with than the purification of purity before the modified 5 wt%, more than 1.89 times the surface area to increase the surface potential decrease of about 10 ~ 20 mV and the surface functional base (-COOH and-OH) to increase 1.45 times, and then the control technology of electroless preparation parameters include: analysis of plating time, plating analysis of temperature, metal ions in solution than the (Fe2+/ Ni2+), bath pH and the added value of dispersion Agent and other research towards Fe-Ni particles to increase the iron content and Fe-Ni particles spread in the MWCNT upper fixed targets,the results found that when the parameters for the preparation of 50 ℃, pH10, do not add dispersant, metal ions than the solution (Fe2 +/ Ni2 +) 7, the highest iron content can be Fe = 40.55 at%(flat iron content 111.17 mg / g) of nanocomposites Fe-Ni/CNT, then for a series of the nature of its analysis, the final evaluation Fe-Ni/CNT nanocomposites were processed on the effectiveness of the application of mixed pollutants, the results showed that in 120 minutes at the same time when Adsorption of heavy metal ions lead nitrate 10 ppm, selenium heavy metal ion degradation of 1 ppm and orange azo dye AO7 50 ppm standard of effluents, and after a total Fe-Ni nano-particles to SEM / EDS analysis of more than 50% still remaining.

本研究首先将多壁奈米碳管以化学氧化法做纯化改质处理能使其纯度较纯化改质前提高5 wt％、比表面积提高1.89倍、表面电位下降约10~20 mV以及表面官能基提高1.45倍，再控制无电镀技术之制备参数包括：析镀时间、析镀温度，镀液中金属离子比(Fe2+/Ni2+)、镀液pH值及是否添加分散剂等，研究朝提高Fe-Ni粒子的含铁量与Fe-Ni粒子散布固定在MWCNT上等目标进行，研究结果发现当制备参数为50 ℃、pH10、不添加分散剂、镀液金属离子比(Fe2+/Ni2+)7时，可得到最高铁含量Fe = 40.55 at％(单位铁含量111.17 mg/g)之奈米复合材料Fe-Ni/CNT，接著对其作一系列性质分析，最后评估奈米复合材料Fe-Ni/CNT对共处理混合污染物之应用效益，结果显示其在120分钟时能够同时吸附重金属硝酸铅离子10 ppm、重金属硒酸根离子1 ppm及降解偶氮橘色染料AO7 50 ppm达放流水标准，且共处理后奈米Fe-Ni粒子以SEM/EDS分析仍剩余50 %以上。

Corrosion rate and interface capacity of iron in acidic perchloride solutions cantaining decylamine, dipentylamine and dodecylamine with or without chloride ion have been measured by curve-fitting method of weak polarization data and AC impedance technique.

用弱极化曲线拟合和交流阻抗技术测定了铁在含或不含Cl~-的癸胺，二戊胺和十二烷基胺酸性除氧溶液中腐蚀速度和界面电容。

It was found that, in comparison with O2/N2 combustion, O2/CO2 combustion does not affect the iron-bearing phases formed, however, it does affect their relative amounts in the ashes. O2/CO2 combustion favors the included pyrite and siderite to form iron-containing glass silicates rather than oxidizing to form iron oxides.

结果表明，与O2/N2燃烧相比，O2/CO2燃烧对灰中生成的主要含铁矿物相种类没有影响，但显著地改变了灰中含铁矿物相的相对含量；O2/CO2燃烧更有利于内在黄铁矿和菱铁矿生成硅酸盐玻璃体而不是氧化成铁氧化物。

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。

MgO-C brick has a good erosion resistance but Al〓O〓-C brick is better. Corrosion mechanism for refractory without carbon is that FeO and oxides of molten slag take place chemical reaction with constituents of refractory and forming low fusing point compounds to be dissolved in molten slag. For those refractory containing graphite carbon is to be decarburized in advance and to form decarburizing layer and metamorphosis layer. The subsequent corrosion is decarburizing and taking chemical reaction to form low fusing point compounds and dissolved in molten slag at the same time.

铁浴中硅和钛的扩散是影响铁浴及熔渣与耐火材料作用的重要因素，耐火材料中添加的TiO〓和SiC受熔渣氧化和侵蚀，将被部分还原形成Si，Ti向铁浴中扩散，Si、Ti在铁浴中的扩散研究结果是： D〓=1.84×10〓exp（－5988.7/T） cm〓/S E〓=49766 J/mol D〓=7.76×10〓exp（－53225.5/T） cm〓/S E〓=442304 J/mol 铁浴式熔融还原熔体对粘土砖，高铝砖，镁砖的侵蚀速度很高，镁碳砖抗侵蚀能力比前几种耐火材料强，但不如铝碳砖；对不含碳耐火材料在熔体中的侵蚀是熔渣中FeO及其它氧化物与耐火材料组分的化学反应形成低熔点物熔蚀进入渣相，产生损毁。

The influence of background absorption on Co 240.7 nm could be completely eliminated when Au 242.8 nm was used as a background correction line,and the results of the determination of micro-amount Co in iron and high-alloy steel with standard addition method were satisfactory.

火焰原子吸收法测定钴是常用方法［1，2］，但需用不含钴或已知钴含量的纯铁做工作曲线，在有些样品中钴含量很低，很难找到合适的纯铁，用基准纯铁价格又很贵；而对于高温合金，合金元素含量很高，很难使标准曲线与样品基体一致。

In most cases, the medical profession do not advocate drug use of tea, in particular, ferrous sulfate, ferrous carbonate, iron citrate iron drink containing amine such as aluminum hydroxide of aluminum-containing agents, such as the western face of tea tea and more phenolic material and metal ion binding and precipitation, will be reduced or loss of efficacy.

在多数情况下，医学界不主张用茶水服药，尤其是硫酸亚铁、碳酸亚铁、枸橼酸铁胺等含铁剂喝氢氧化铝等含铝剂的西药，遇到茶汤中的茶多酚类物质与金属离子结合而沉淀，会降低或失去药效。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷