查询词典 Zn

The results show that cerium can refine the microstructure of Zn-22%Al alloy, slow the grain growth and retain the equiaxial degree during ageing.

Ce具有细化Zn-22%Al合金组织并阻碍时效时晶粒长大和轴程度降低的作用。

The microsturcture of ZE series alloys was composed of fine dentritic or equiaxial α-Mg solid solution and interdendritic Mg-Zn-RE phase formed by divorced eutectic reaction.

研究表明， ZE 系合金的铸态组织细小，由树枝状和等轴状过饱和的α-Mg 固溶体以及分布在晶间连接成网状的 Mg-Zn-RE 三元中间相组成。

The characters of powder are connected with the inside structure and synthesize-technics of materials. In this paper, we want to search a optimize technics of materials synthesizing, and prepare a kind of nanosize powder which shape like ball and have good dispersed character. At the same time, we want to obtain a bridge structure of Zn-O-Tb through dopping of Tb, which can achieve efficient energy transfer from ZnO hosts to excited states of dopants, The doped powder can eradiate blazing green light because of efficient emission buildup from dopants and ZnO hosts, and the powder can emission a pure light. And we want to research the structure in doped ZnO for the further research of low-tension fluorescence of ZnO.

粉体的这些特性无不与其内部结构特征和制备工艺有关，基于这些，本文的实验目的是希望能寻找一种合适的制备方法和优化工艺，制备分散性好的球形纳米颗粒，希望改善其表面形貌，同时，通过铽掺杂，希望得到一种Zn-O-Tb桥联结构，实现氧化锌基体向铽发光中心的能量传递，希望铽中心特征发射和氧化锌绿光发射能有效叠加增强，改善粉体的单色性，制备出好的复合粉体，分析清楚其结构，从而为后续低压荧光特性研究作准备。

The content of Na, K, Ca, Fe, Mg, Zn, Cu and Mn in the skin of Erinaceus europaeus L was determined by atomic absorption spectrometry.

为了解刺猬皮的中药功效与微量元素的关系，用原子吸收分光光度法测定了Na、K、Ca、Fe、Mg、Zn、Cu、Mn等矿质元素。

The study indicates that the Pb and Zn ore-forming elements probably come from the basement rocks; The initial Pb isotope could be derived from the crust-mantle mixing in the erogenic belt; sulfur isotope composition is enriched in heavy sulfur that may have come from the seawater sulfate in the synchronous sedimentation; the ore is characterized with REE enrichment, obvious fractionation of LREE and flat-pattern of HREE; ore-forming media is thermal brine fluid; both mineralization temperature and pressure are low; the metallogenic epoch is probably in late Dengying epoch of Sinian period.

研究表明，基底岩系可能为成矿元素Pb、Zn的主要来源；原始铅主要来源于壳幔棍合的造山带；硫同位素富集重硫，可能主要来源海水硫酸盐；矿石中稀土元素富集，轻稀土分异较明显，而重稀土分异不明显；成矿流体推测为热卤水性质，成矿温度为中低温，具有低压浅成成矿特点；矿床形成的初期应始于震旦纪灯影世晚期。

The trivalent chromium passivation film based on zincate plating obtained has compact structure with no obvious crack, and excellent anticorrosion performance. Different compositions are detected from the surface to inner film, the surface mainly contains Cr2O3-Cr3-ZnO compound, the inner (1030 nm to surface) composes of Cr2O3-ZnO-Zn.The forming process of passivation film possibly consists of four steps which are zinc dissolution, basic area appearance, gelatiniform film forming and converting to passivation film.

结果表明：锌酸盐镀锌层的三价铬钝化膜表面结构致密、无明显裂纹，具有较好的耐腐蚀性能；这种钝化膜表层与里层的组成不同，表层的组成为Cr2O3-Cr3-ZnO共混物；里层(离表层10~30 nm处)的主要组成为Cr2O3-ZnO-Zn共混物；钝化膜的成膜过程可能包括镀锌层的溶解、碱性薄层的形成、胶状膜的形成和胶状膜转化成钝化膜4个步骤。

For example, Gracilaria conferuoides had the highest concentration of As, Cu, Pb, Cr, Se, Fe, Mn, at 8.9, 34.35, 24.26, 68.12, 12.04, 26777.2, and 400.16mg/kg; and Nemacysti Decipientis , Sargassum thunbergii , Gelidium amansii , Asparagopsis taxiformis for Hg, Zn, Cd, Ba at 6.9, 277.37, 6.77, 127.02mg/kg, respectively.

结果表明， As、Cu、Pb、Cr、Se、Fe、Mn 在细江蓠体内含量最高，分别为8.90、34.35、24.26、68.12、12.04、26 777.20、400.16mg/kg； Hg 在海蕴体内含量最高，达6.90mg/kg； Zn 在鼠尾藻体内含量最高，为277.37mg/kg； Cd 在石花菜体内含量最高，为6.77mg/kg； Ba 在海门冬体内含量最高，为127.02mg/kg。

Zn played an important role in the quality of Glycyrrhiza uralensis Fisch. and could be regarded as the characteristic element.

结论］Zn元素对宁夏盐池县所栽培的道地乌拉尔甘草的质量有重要作用，可以作为其特征元素。

The thermal gravimetric change of Al-Si-Zn alloys in oxidation growth process was studied.

研究了Al-Si-Zn系合金氧化生长过程的热重变化。

By adopting the method of stepwise synthesis, this paper synthetizes 1,3 - diaminopropanein 2-Hydroxy-3-methoxybenzaldehyde Zn-Sm heteronuclear bimetallic in Anhydrous methanol solution.

6楼本文采用分步合成的方法，在无水甲醇溶液中合成了1，3-丙二胺缩邻香兰素Zn-Sm异核双金属配合物。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。