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提取铁
相关语句
  extracting iron
     Extracting Iron Powder from Revolving Furnace Sludge
     从转炉烟尘中提取铁粉的研究
短句来源
     EXTRACTING IRON FROM PYRITE CINDER BY MATURATION
     用熟化法从硫铁矿烧渣中提取铁
短句来源
     This paper involved chemical compositions and physical phases of iron pyrite cinder and the principle of extracting iron from the cinder acid leaching.
     本文叙述了硫铁矿烧渣的化学成分和物相 ,以及酸浸还原烧渣提取铁的基本原理。
短句来源
  “提取铁”译为未确定词的双语例句
     The Fe 2+ was extracted from pyrite cinder by reduction roasting method and transformed into FeSO 4 as a precursor to make α-FeOOH. The crystal nucleus of α-FeOOH was prepared in a neutral solution (pH: 6~7) of FeSO 4 (0.15~0.25 mol/L) and Na 2CO 3 ( n(Na 2CO 3)∶n(FeSO 4)=1∶1).
     用还原焙烧法从硫铁矿烧渣中提取铁 ,制得FeSO4,并以其为原料 ,在初始铁离子浓度c(Fe2 + )为0 15~ 0 2 5mol/L、n(Na2 CO3 ) /n(FeSO4) =1的近中性条件 (pH值为 6~ 7)下 ,制备了α FeOOH晶核 ;
短句来源
     The changes of total reducing substances (TRS), oxalate extractable Fe (Fe o), dithionite citrate bicarbonate extractable Fe (Fe DCB ) and phosphorus adsorption (P 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 (TRS)、草酸盐可提取铁 (Feo)、连二亚硫酸钠 -柠檬酸 -碳酸氢钠可提取铁 (Fe DCB)和磷吸附的变化进行了研究 .
短句来源
     It was found than the ratio of total iron (Fe_T) and HCl extractable iron(Fe_H) kept stable equilibrium in green leaves and was about 2.1 in peach leaves.
     在绿叶中全量铁和HCl提取铁的比率保持着一定的稳定平衡,在桃叶中全量铁/酸提取铁比率大约是2.1。
短句来源
     A analysis results of total iron and HCl extractable iron and Fe~(2+) in fruit plant leaves showed that in yellow leaves were as much total iron or even higher amounts than in green leaves. But HCl extractable iron and Fe~(2+) in yellow leaves were significantly less than in green.
     对果树叶片中全量铁、HCl提取铁和Fe~(2+)含量分析结果表明:果树黄叶中含有与正常绿叶一样多甚至高于绿叶的全量铁,但用HCl提取的铁和Fe~(2+)的数量则明显比绿叶少。
短句来源
     The research on the abstraction technology of valuable metals as iron, gold, silve etc from pyrite cinder
     黄铁矿烧渣提取铁、金、银等工艺研究
短句来源
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  相似匹配句对
     S. tenebrarius H6 total DNA was extracted and incomplete digested with Sau3A I .
     提取S.
短句来源
     EXTRACTING NEODYMIUM OXIDE FROM THE Nd-Fe-B WASTE.
     从钕硼废料中提取氧化钕
短句来源
     Study on extraction and characterization of red pigment from the fruits of Ilex rotunda Thunb
     冬青果红色素的提取及性质研究
短句来源
     Text Extraction in Video
     视频文本的提取
短句来源
     Fe.Mo-Cofactor
     钼辅因子
短句来源
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  extracting iron
Extracting iron-bearing products from steelmaking slags and returning them to the production cycle has reduced iron losses by 30% for the metallurgical conversion as a whole.
      


A analysis results of total iron and HCl extractable iron and Fe~(2+) in fruit plant leaves showed that in yellow leaves were as much total iron or even higher amounts than in green leaves. But HCl extractable iron and Fe~(2+) in yellow leaves were significantly less than in green. It was found than the ratio of total iron (Fe_T) and HCl extractable iron(Fe_H) kept stable equilibrium in green leaves and was about 2.1 in peach leaves. As HCl extractable iron decreased in yellow leaves, Fe_T/Fe_H ratio increased...

A analysis results of total iron and HCl extractable iron and Fe~(2+) in fruit plant leaves showed that in yellow leaves were as much total iron or even higher amounts than in green leaves. But HCl extractable iron and Fe~(2+) in yellow leaves were significantly less than in green. It was found than the ratio of total iron (Fe_T) and HCl extractable iron(Fe_H) kept stable equilibrium in green leaves and was about 2.1 in peach leaves. As HCl extractable iron decreased in yellow leaves, Fe_T/Fe_H ratio increased and occured disorder of iron metabolism in plants. Thefore, Fe_T/Fe_H ratio in leaves is a better indicator to evaluate the iron nutrition status of the plant. K and P were higher and Ca was lower in yellow leaves than in green. There was significantly negative correlation between K and Fe, which K~+concentration in leaves increased when applied potassium feitilizer to the peach trees, while Fe content decreased in leaves, as a result K/Ca and K/Fe ratios significantly increased.

对果树叶片中全量铁、HCl提取铁和Fe~(2+)含量分析结果表明:果树黄叶中含有与正常绿叶一样多甚至高于绿叶的全量铁,但用HCl提取的铁和Fe~(2+)的数量则明显比绿叶少。在绿叶中全量铁和HCl提取铁的比率保持着一定的稳定平衡,在桃叶中全量铁/酸提取铁比率大约是2.1。失绿黄叶由于活性铁减少而使比率增大,从而使植株中铁营养代谢失调。因此,全量铁/酸提取铁比率能较好地反映植株铁营养状况。在失绿黄叶中K和P比绿叶高,而Ca含量低,K和Fe成显著负相关。当桃树施用钾肥时,叶子中K~+浓度增加而Fe减少,使K/Ca和K/Fe比显著增大。

This paper has studied conditions of extracting iron with hydrochloric acid from fruit plant leaves. The results showed that appropriate conditions of the extraction are as follows: With 1N HCI, ratio of sample to extraetant is 1:50 and soaking time is 24 h at temperature 18-25℃. Under this condition amount of extracting iron was stable, and as compared with total iron there was significantly positive correlation between both (r=0.97, Y=2.25x-9.31). A analysis results of total iron and HCI extractable iron and...

This paper has studied conditions of extracting iron with hydrochloric acid from fruit plant leaves. The results showed that appropriate conditions of the extraction are as follows: With 1N HCI, ratio of sample to extraetant is 1:50 and soaking time is 24 h at temperature 18-25℃. Under this condition amount of extracting iron was stable, and as compared with total iron there was significantly positive correlation between both (r=0.97, Y=2.25x-9.31). A analysis results of total iron and HCI extractable iron and Fe~(2+) in fruit plant leaves showed that in chlorotic leaves were as much total iron or even higher amounts than in green leaves. But HCI extractable iron and Fe~(2+) in chlorotic leaves significantly less than in green. It was found that the ratio of total iron and HCI extractable iron was in stable equilibrium in health green leaves and was about 2.1 in peach leaves. As HCI extractable iron decreased in chlorotic leaves, total iron and HCI extractable iron ratio increased and occured disorder of iron metabolism in plants. Therefore, total iron and HCI extractable iron ratio in leaves is a better diagnostic criteria to evaluate the iron nutrition status of the plant. K and P were higher and Ca was lower in chlorotic leaves than in green. There was significantly negative correlation between K and Fe, which K concentration in leaves increased when applied potassium feitilizer to the peach trees, while Fe content decreased in leaves, as a result K/Ca and K/Fe ratios significantly increased.

本文研究了果树正常绿叶和失绿黄叶中用盐酸提取的铁,Fe~(2+)和全量铁之间的差异。结果表明,在一定提取条件下果树正常绿叶中的全量铁和用盐酸提取的铁之间存在着一定的数量平衡,在桃叶中二者的比率稳定在2.1左右;失绿黄叶中全量铁和绿叶的含量一样或高于绿叶,但用盐酸提取的铁以及Fe~(2+)则明显比绿叶少,全量铁和盐酸提取铁比率显著增大;失绿叶中K和P的含量比绿叶高而Ca含量则比绿叶低。叶片中的K和Fe含量呈负相关。

Surface samples of five Ultisols (Dothan,, Red Bay, and Orangeburg from Florida, Manana from Hawaii, and Huangjinni from Zhejiang, China) and one Oxisols ( Wahiawa from Hawaii) were used to ascertain the effects lime and organic matter on P adsorption and desorption under flooded condition. Reagent- grade calcium carbonate and ground dry clover tissues were used as lime and organic matter sources.

每公斤土加入2克碳酸钙和(或)三叶草的5个老成土和1个氧化土,在淹水培育45天后风干,结果发现:(1)淹水土壤风干,其pH比淹水时低,但仍比未淹水的高;(2)淹水降低了土壤中0.5MCuCl_2提取的铝量,石灰和三叶草处理使3个轻质土中的铝量进一步降低,但3个粘质土则呈现相反的趋势;(3)改良剂使3个轻质土吸附的磷减少,而使3个粘质土吸附的磷增加。前者增加的原因是因为通过还原作用和氧化作用形成了较多的活性表面,而后者的减少则可能是粘粒表面所形成的水化氧化物胶膜堵塞了原有的吸附位,从而使吸附位减少(4)改良剂对磷解吸的影响,是降低了3个轻质土的磷解吸,而增加了3个粘质土的磷解吸;(5)经淹水风干处理土壤的磷吸附量与草酸盐提取的铁、铝、锰及CuCl_2溶液提取的铝有很高的相关性,表明控制淹水土壤磷吸持的土壤组分,不仅包括无定形铁,而且也包括羟基铝聚合物。

 
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