XRD 图谱表明，阴极材料结晶完整，为均一橄榄石型结构，仅含少量三价铁杂质。
XRD patterns showed that the cathode material is well-crystallized, homogeneous olivine-type phase, with only tiny trivalence iron impurities.
所产生的“三价疫苗”刺激患者的免疫系统产生抗体，为流感病毒株的可能袭击做好准备。
The resulting "trivalent" vaccine provokes the patient's immune system into producing antibodies, and that primes it for an attack by the worrying strains of flu.
为控制流行性脑膜炎提供疫苗国际协调小组已为大规模预防接种运动提供178,000份三价疫苗。
The International Coordinating Group (ICG) on vaccine Provision for Epidemic Meningitis Control has provided 178,000 doses of trivalent vaccine for a mass vaccination campaign.
研究人员发现，铬元素的氧化物由六价铬转变为三价铬，这与画作中的铬黄色日趋变暗有关。
The researchers found that a change in the oxidation state of the element chromium (from chromium 6 to chromium 3) was linked to the darkening of chrome yellow paint.
当金属的覆盖层受到扎刺或划损时，受损区域的胶囊将会破裂并渗出具有恢复性的液体- - -三价铬钝化化合物。
When the metal coating is punctured or scratched, the capsules in the damaged area burst and ooze restorative liquids, in the form of compounds called trivalent chromates.
介绍了三价铬镀铬的主要优点与缺点。
The major advantages and disadvantages of trivalent chromium electroplating were introduced.
三价铬电镀分为氯化物体系和硫酸盐体系。
Trivalent chromium plating can be divided into chloride and sulfate systems.
选用BH- 88硫酸盐三价铬镀铬工艺。
BH-88 trivalent chromium sulfate plating process was chosen.
在第二个反应器中，用三价铁离子溶液浸出矿石。
对三价铬电解液镀铬的沉积速度进行了实验研究。
The chromium deposition velocity of trivalent chromium electroplating was researched.
实现这一目的的一种方法是将三价阳离子加入水中。
One means of accomplishing this end is to add trivalent cations to the water.
在水处理中三价阳离子通常来源于明矾（硫酸铝） 。
The usual source of trivalent cations in water treatment is alum (aluminum sulfate).
还原生成的三价铬的量或未反应的重铬酸钾的量能被测出。
Either the amount of reduced chromium or the amount of unreacted dichromate can be measured.
三价铬及六价铬是食品中微量元素铬的两种主要存在价态。
Trivalent chromium and hexavalent chromium are two main states of the chromium in foods.
提出应用于三价铬钝化前的碱性无氰镀锌及酸性镀锌的适用场合。
The applicable fields of alkaline cyanide-free zinc plating and acidic zinc plating before trivalent chromium passivation were proposed.
三价铬经封闭钝化后，装饰效果、力学性能和抗腐蚀能力会有所提高。
By using tri-chrome passivation with top-coat, the decorating, mechanical performance and corrosion resistance will be all improved.
三价动词是指在动词基本语义结构中能够携带三个强制性语义成分的动词。
A trivalent verb should be a verb that can control three obligatory semantic elements in basic semantic structure.
不论对细胞DNA合成的促进作用还是抑制作用，三价砷比五价砷的作用更强。
The effects of stimulating or inhibiting of trivalent arsenic on DNA synthesis were always stronger than that of pentavalent arsenic.
一种比较近代的、人们好采用的技术是在混合过程中加入可溶性的三价锑衍生物。
One relatively recent technique which has found some favor involves the inclusion of soluble trivalent antimony derivatives in the slurry during mixing.
三价铬含量偏低时，根据计算加入适量草酸即可很方便地将其控制在最佳范围内。
The concentration of Cr(III)is easily controlled in optimal range by adding a proper amount of oxalic acid when Cr(III)content is low.
利用电化学方法分别研究了晶粒尺寸对纯锌及其表面三价铬钝化膜腐蚀行为的影响。
The effects of grain size on the electrochemical corrosion behaviors of zinc and trivalent chromium passivation film on zinc have been studied respectively by electrochemical methods.
六价铬电镀工艺存在严重的环境污染问题，利用三价铬镀铬取而代之已经迫在眉睫。
It's urgent to develop the technique of trivalent chromium plating because of the heavy pollution of hexavalent chromium plating.
采用直流和脉冲电沉积方式从三价铬的氯化物镀液中沉积出镍-铁-铬纳米合金镀层。
Nickel iron chromium alloy with nanocrystalline were electrodeposited from chloride bath containing trivalent chromium ions under direct and pulse current.
三价钕离子是有效的发光中心，利用晶场分析，三价钕离子主要是处在锌的替代位置。
The efficient luminescence centres were found to be trivalent neodymium ions which, by a crystal field analysis, were shown to be located at zinc substitutional sites.
本发明涉及一种利用分光光度技术测定海水中亚铁、三价铁及总铁含量的简便准确方法。
The invention relates to a method for simply, conveniently and accurately measuring the contents of ferrous, ferric iron and total iron in seawater by utilizing a spectroscopic luminosity technology.
许多动物试验和临床试验均表明，三价铬能影响糖代谢，是人和动物体所必需的微量元素。
There have been numerous experiments on animals and clinic tests confirming trivalent chromium is an essential micronutrient for human and animals, which can affect the metabolism of glucose.
吗啉在高温下将六价铬还原为三价铬，通过测定三价铬离子的吸光度，计算出锅炉给水中吗啉含量。
Hexavalent chrome is reduced to trivalent chrome by morpholine under high temperature conditions. Then morpholine content is calculated by detecting the absorbance of trivalent chromic ion.
概括了几种常用的三价和五价碘试剂作为氧化剂氧化醇的研究进展，并对相应的氧化机制进行了探讨。
Advances in the oxidation of alcohol promoted by I (III) and I (v) reagents are reviewed and the relevant mechanisms are discussed as well.
从磺基水杨酸与三价铁离子配合物的组成及稳定常数测定实验入手，探讨了化学实验中的教学技巧问题。
By determining the composition and stable constants of sulphuric iron salicylate, this article probes into the teaching skills in chemistry experiments.
从磺基水杨酸与三价铁离子配合物的组成及稳定常数测定实验入手，探讨了化学实验中的教学技巧问题。
By determining the composition and stable constants of sulphuric iron salicylate, this article probes into the teaching skills in chemistry experiments.
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