亚铁的

Heme oxygenase catalyze the rate-limiting step in the degradation of heme to yield equimolar amounts of biliverdin, carbon monoxide , and iron.

亚铁血红素氧化酶是将亚铁血红素降解为胆绿素、铁和一氧化碳的限速酶，胆绿素则在胆绿素还原酶的作用下转变为胆红素。

Carbonyl iron fibre with different Fe content (90%~98wt%) and diameter (200nm~l0μm) had been fabricated by adjusting fibre growth factors, such as velocity of Fe5 vapor and protective gas, temperature of chemical decomposition and magnetic field strength. So the diameter of carbonyl iron fibre could be controlled from micron to sub-micron.

对羰基化合物气化速率、保护气氛流量、分解温度和外加磁场强度等因素的调控，制备出铁含量在90%~98%可调、直径在亚微米到微米(200nm~10μm)及长径比可控的羰基铁纤维。

The changes of total reducing substances, oxalate extractable Fe, dithionite citrate bicarbonate extractable Fe and phosphorus adsorption in oxic and anoxic layers of two paddy soils during 6 week flooding were examined under laboratory conditions.

在实验室条件下对两种水稻土在为期 6周的淹水过程中，其氧化层和还原层土壤中还原物质总量、草酸盐可提取铁、连二亚硫酸钠-柠檬酸-碳酸氢钠可提取铁和磷吸附的变化进行了研究。

Up-regulated proteins under salt stress include an ABC transporter permease, glycerol-3-phosphate permease, pyrimidine nucleotide transporter, formate dehydrogenase, and down-regulated proteins include succinate dehydrogenase iron-sulfur subunit, flavoprotein subunit, cytochrome b-556 subunit, and a hypothetical membrane protein similar to charperone DnaJ. Some of these changes were further verified by enzyme activity assay.

盐胁迫诱导上调表达的蛋白包括ABC型转运蛋白，3-磷酸甘油透性酶，嘧啶核苷转运蛋白和甲酸脱氢酶；下调表达的蛋白包括琥珀酸脱氢酶铁硫亚基、黄素蛋白亚基、细胞色素b556亚基，以及分子伴侣DnaJ的同源蛋白，酶活力测定结果表明胁迫条件下上述蛋白的活性变化与表达量变化相一致。

Ore deposits of this region are assigned to Caledonian metallogenic series and Indosinian metallogenic series according to ore-bearing strata, granites related to ore deposits mineralization type and temporal-spatial distribution characteristics of ore deposits. The Caledonian series is further divided into three subseries, namely lead and zinc metallogenic subseries, lead, zinc and iron metallogenic subseries and lead, zinc, tungsten, tin and molybdenum metallogenic subseries.

本文根据所发现的25个矿床的赋矿地层、与成矿有关的花岗岩、矿化类型及其时、空分布特征，将它们划分为加里东期成矿系列和印支期成矿系列，进而又将加里东期成矿系列划分为铅、锌成矿亚系列，铁、铅、锌成矿亚系列和铅、锌、钨、锡、钼成矿亚系列。

A2D iim ine nickel, palladium complexes and pyridine bisimine iron, cobalt complexes are discovered in recent years to be new generation late transition metal catalysts for olefin homogeneous poly merization and oligomerization.

A2二亚胺镍、钯络合物和吡啶二亚胺铁、钴络合物是近几年来发现的新一代烯烃均相聚合后过渡金属催化剂。

A novel planar chiral diferrocenylimine-diols 6 was synthesized by the condensation of R, S(subscript p-1-(2-diphenyl hydroxyl methyl) ferrocenylethylamine [R, S(subscript p-4] with phthaldehyde in anhydrous ethanol, and was crystallographically characterized.

通过R，S(下标 p-1-（2-二苯基羟甲基）二茂铁乙胺[R，S(下标 p-4]和对苯二甲醛在无水乙醇中的缩合反应合成了一种新型平面手性双二茂铁亚胺二醇化合物6，并经X-射线衍射分析它的晶体结构。

With the same Fe and Mn content, the primary iron phase in the hypoeutectic alloys is obviously less than that in the eutectic alloys, and α iron phase will form a kind of thin dendrite structure in α-Al dendrite crystal and will have strengthen effect.

在同样的铁锰含量下，亚共晶铝矽合金中的初生铁相明显比共晶合金要少，且α铁相在α铝树枝晶中会形成一种细密的树枝晶结构，可以作为基体的强化相。

This method uses the features of laser such as high-speed heating and cooling to implement scribing treatment on the oriented steel sheet surface so as to promote the generation of micro plastic deformation and high-density dislocation in its heated section, form the subcrystalline boundary, reduce its main domain wall length, and introduce residual tensile stress so obtaining the effects of refining magnetic domain and reducing iron loss.

降低硅钢片铁损的激光处理方法及装置。$该方法是利用激光快速加热和冷却的特点，对取向硅钢片表面做划线状处理，促使加热区产生微小塑性变形和高密度位错，形成亚晶界，减小主畴壁长，同时引起残余张应力，达到细化磁畴，降低铁损的效果。

Observation of transmission electron microscope reveals that the f＇me structure of CGHAZ and IRCGHAZ of both in- service welding and routine is ferrite laths and the second phase particles that distribute on or between ferrite laths.

透射电镜下，在役焊接和常规焊接的粗晶区与临界粗晶区的主要形貌都是铁素体板条和分布在板条之间或板条基体上的岛状物，铁素体板条的亚结构都是高密度位错。

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