查询词典 si

Sub-thesis is mainly on the test and research of the photoelectric properties of a-Si:H thin film deposited by microwave electron cyclotron resonance chemical vapor deposition system.

本论文主要是对MW-ECR CVD系统沉积的a-Si：H薄膜进行了一系列的光电特性的测试研究工作。

The results show that upper bainite and grain boundary segregation of Si element result in embrittlement of the oil cylinder.

结果表明，上贝氏体和Si元素的晶界偏聚导致油缸变脆。

In the aspects of research method, we took the method of preparing sol at first and then impregnating the wood to obtain ceramic-wood composite; this method made the wood use efficiently and increased the wood's weight gain percent. The ceramic-wood composite with performances of well decay resistance, dimensional stability, effloresce resistance and high strength was obtained by importing the cymene to the net of gel as the result of co-hydroxylation between MTES and TEOS. Making use of XPS ,we found that the apex of Si2p、O1s、C1s had evident chemical shift , which validated the existence of Si-O-C bonding.Key Words: Sol-gel, Ceramic-wood composite, Modified sol, Ecomaterials

在工艺方法上，采用先制备溶胶，然后浸注木材的工艺方法具有原料利用率高、提高增重率的优点；采用甲基三乙氧基硅烷和正硅酸乙酯共水解的方法，将甲基引入陶瓷化复合木材的凝胶内部，所制备的材料具有尺寸稳定性好、具有耐风化和耐腐朽性，强度高的特点；首次利用X射线光电子能谱，发现了Si2p、O1s和C1s谱峰发生了明显的化学位移，证实了Si－O－C键合作用的存在。

For those of our readers who would like furtherinformation concerning the habits and behavior of the si'im tala, our editors recommend "Forbidden Cities of the North" by Gregor Seamus Darton.

如果我们的读者想知道关于si'im tala习惯和行为的进一步信息，我们的编辑推荐"Gregor Seamus Darton所著的北方禁城"。

In DRAE, it is thought that Si DBs play an important role in the excitation of Er3+ ions.

在DRAE模型中，Si DBs对Er~(3+)的激发起到了重要的作用。

The intensity of the defect PL tends to decrease with an increase in the density of Si DBs.

随着Si DBs密度的增加，缺陷PL的强度减小。

A new hexagonal approximant has been found in Al-Cr-Si alloys and its axial lattice parameter follows a τ''s power series τ=(1 √5/2 is the golden number relationship, implying that they are all decagonal approximants. A rule of the icosahedral chains in them has been found.

在Al-Cr-Si合金中发现一种新的六角近似相，它与几个结构已知的六角相的晶格常量呈黄金数τ=(1 √5/2的幂级数关系，说明它们都是十重准晶的近似相，并找出其中二十面体链的规律。

Recent experiments on the Si (111)(7×7)-(1×1) phase transition showed that when the temperature is raised above the critical temperature, a 7×7 island decays to zero at a constant area decay rate which increases with the size of the initial area.

近期Si(111)(7×7)-(1×1)相变的实验研究发现，将温度升高到相变温度以上时，7×7岛面积以恒定的衰减速率随时间减小至零，且初始面积越大的岛这个衰减速率就越大。

In this paper, deoxidation effect of Si-Al-Ba-Ca complex deoxidizer cored wire for 80t oxygen converter is analysed.

分析了80t氧气转炉应用Si-Al-Ba-Ca 包芯线的脱氧效果，比较了用喂Al线和CaSi线时对脱氧、钢质、工艺的影响。

Because the intensity of stable deuteron beam is sig-nificantly larger than that of unstable ~(26)Si beam, the statistics will be largelyimproved.

同样也可以利用该方法通过分析已有的~(26)Mg~(27)Mg反应的角分布来间接研究~(26)Si~(27)P反应。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。