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In the experiment, the Cichorium glandulosum Boiss et Huet powder was digested with HNO3 by microwave digestion before determination.The eightmet alelements, potassium, nickel, calcium, magnesium, iron, manganese, copper and zinc, in Cichorium glandulosum Boiss et Huet were determined by FAAS.

试验采用HNO3 作为消解液,利用微波消解的方法处理样品,原子吸收分光光度法测定维吾尔药材菊苣根中钾、镍、钙、镁、铁、锰、铜和锌八种微量、常量元素的含量,精密度和回收率较好,回收率控制在92.25%~110.5%之间,相对标准偏差RSD曑3.88%。

In this thesis, it is studied that the Li2O-Al2O3-SiO2 system glass ceramics of high expansion which can be a match for the iron nickel alloy (485 alloy ) with 102×10-7/℃expansion coefficient, and influence of the change of every group compos...

本课题研究了能和膨胀系数为102×10-7/℃的铁镍合金(485合金)匹配封接的高膨胀Li2O—AL2O3—SiO2系统微晶玻璃,研究了各组份变化对微晶玻璃性能的影响。

Succeed first preparation nickel of iron cyanic acid is multilayer film decorates electrode, studied with circular volt-ampere law this are multilayer electrochemistry behavior of film, the experiment shows peak electric current increases along with the addition of velar number of plies, film grows equably.

首次成功制备了铁氰酸镍多层膜修饰电极,用循环伏安法探究了该多层膜的电化学行为,实验表明峰电流随膜层数的增加而增加,膜均匀增长。

But copper dissolves less, and silver、nickel and iron is hardly dissoluble, because of passivation of black Ag〓S and Cu〓S layer and sulfide film of nickel and iron.

在碱性硫脲溶液中,银、铜几乎不溶解是因为黑色的Ag〓S和Cu〓S膜的钝化,铁、镍不溶解亦是其硫化物膜钝化的结果。

During the past decade, considerable research effort has been directed towards the development of in situmetal matrix composites, in which the reinforcements are formed in situ by exothermal reactions betweenelements or between elements and compounds. Using this approach, MMCs with a wide range of matrix materials(including aluminum, titanium, copper, nickel and iron), and second-phase particles including borides, carbides

在过去的几十年中,对于金属基复合材料我们做了大量的研究工作,这些复合材料的增强体都是通过元素之间或者元素与化合物之间的原位放热反应而加入到基体中的,这种方法广泛应用在生产金属基体材料(包括铝、钛、铜、镍和铁)和第二相颗粒中(包括硼、碳、氮、氧和他们的混合物)。

The cold mineral spring is rich in abundant macro-elements such as hydrogen, carbon, phosphor, oxygen and nitrogen, etc., and it abundantly contains 17 microelements such as ferrum, copper, zinc, nickel and silicons, etc. necessary to human body.

冷矿泉富含丰富的宏量元素氢,碳,磷,氧,氮等,富含丰富的铁,铜,锌,镍,硅等到17种人体必需的微量元素。

The characteristics of the strains towards chromium, nickel, cadmium, copper and ferrum adsorption have been studied comprehensively.Based on these conditions the research of the wastewater treatments such as galvanization, hardware industry, leather production, and printing and dyeing using the strains has been carried out.

通过系统的研究,构建了10株以解脂假丝酵母和产朊假丝酵母为出发菌的基因工程菌株;对菌株处理重金属铬、镍、镉、铜和铁等重金属的性能进行了较全面的分析。

The cold mineral spring is rich in abundant macro-elements such as hydrogen, carbon, phosphor, oxygen and nitrogen, etc., and it abundantly contains 17 microelements such as ferrum, copper, zinc, nickel and silicons, etc.

冷矿泉富含丰富的宏量元素氢、碳、磷、氧、氮等,富含丰富的铁、铜、锌、镍、硅等到17种人体必需的微量元素。

The oxidant 〓 plays indirect role in dissolving gold, and mainly controls the mix potential of Au in the alkaline thiourea solution. In which the "mix potential"is the decisive factor affecting the dissolution of gold. The reaction driving force is enough to have formamidine disulfide oxidize Au to Au〓 at the potential of about 0.4V. And then thiourea molecular complexes with Au〓 ion soon, which causes the fast dissolution of gold in the alkaline thiourea media. The dissolved weight of gold in 0.25 M thiourea solution with 0.05M Na〓SO〓 and 0.1M 〓 of pH 12. 5 by air at the temperature of 303K is 7. 8mg·cm〓 within 1hr.

在碱性硫脲溶金过程不起直接作用,而是通过S〓O〓来控制二硫甲脒有效形成的金在溶液中的混合电位;&混合电位&是影响碱性硫脲溶液溶金与否的决定性因素,在0.4V左右,有足够的推动力致使二硫甲脒氧化Au成Au〓,随后硫脲与Au〓络合形成稳定的络离子Au〓,从而使金快速溶解;温度为303K、pH为12.5时,在含0.05MNa〓SO〓、0.1M 〓及0.25M硫脲的溶液中,鼓入空气,金的溶解量在1hr内为7.8mg·cm〓;铜只有微量溶解,银、镍、铁则几乎不溶解。

There are different content of Ni, Fe deposed on waste catalysts, which make them receive inequivalent force in magnetic field, catalysts with high content are selected from non- or lower magnetic active mass.

该磁分离方法主要是利用镍、铁等重金属元素在催化剂上沉积量的不同导致它们在磁场中所受的磁力大小不同,可从非磁性或弱磁性催化剂颗粒中选出吸附了较多金属的磁性催化剂颗粒。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

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