多晶的

Based on the analysis of error characteristics and performance effect of the mostly used crystal oscillator, a method to simulate the frequency error of crystal oscillator is proposed. The major idea is to determine the Allan variance parameter of each main stochastic error component at the given sampling interval at first, then to deduct a set of corresponding frequency error series and superpose them together.

该文对在GPS接收机中使用最多的晶振的误差特性和性能影响进行了分析，在此基础上提出了一种模拟晶振频率误差的方法，即首先确定晶振在给定取样时间间隔上各主要随机误差成分的Allan方差参数，由此反演产生相应的各项晶振频率误差模拟序列并进行叠加。

The measurement of 1/f noise in amorphous, microcrystalline and polymorphous silicon film was performanced with a self-design semiconductor system.

研究不同厚度的非晶、微晶和多形硅三种氢化硅薄膜的热导率结果表明微晶硅薄膜的晶化增大了薄膜的热导率。

The formation mechanism of the screw structures on the surfaces of polytype crystals is discussed according to the theoretical model of anionic coordination polyhedron growth units.

本文用负离子配位多面体生长基元理论模型讨论了多型性晶体表面螺旋结构的形成，提出在多型性晶体中配位多面体呈层状分布，配位多面体的面为层的边界，上、下层负离子配位多面体不是呈镜象对称的，在三方晶系和六方晶系的晶体中是沿晶轴a、b错开，上、下两层负离子配位多面体体呈交叉对应，从而达到稳定平衡。

The resistivity, squared resistance and temperature coefficient of resistance in hydrogenated silicon film decrease with the increasing of boron doping concentration.

搭建了半导体噪声测试系统，对非晶、微晶和多形三种氢化硅薄膜的1/f噪声测试分析说明薄膜的晶化使得薄膜结构的有序度更高，晶化降低了薄膜的1/f噪声。

Caprolactam grafted carbon fibre could improve the initial crystallization temperature and the crystallization rate more obviously than ungrafted carbon fibre. The crystallization of nylon 6 was determined by nucleation. The nonisothermal crystallization dynamics was well coincident with the rule of both of Jeziorny and Liu equation. isothermal crystallization dynamics fitted to Avrami equation.

用广角X射线衍射法对晶型结构进行研究，表明碳纤维使原生态的样品中α晶型的含量降低，结晶度下降，其中接枝聚己内酰胺链段的碳纤维／MC尼龙6原位复合材料中α晶型的含量比未接枝的碳纤维／Me尼龙6原位复合材料的多，结晶度也较大：样品淬火时，碳纤维有利于基体尼龙6结晶时形成γ型晶体，接枝聚己内酰胺链段的碳纤维更有利于基体尼龙6结晶时形成γ型晶体；淬火后的样品在200℃下退火2个小时后γ晶型完全转变为α晶型。

The result indicated that the AlTiN multilayer coating deposited on high speed steel substrates with alternated nitrogen contents in layers. In each layer, AlTiN exhibited nanocomposites of nanocrystallites embedded into amorphous matrices despite of the nitrogen content. The difference between bilayers was that AlTiN layer with lower nitrogen content had a lower density of nanocrystallites. The AlCN coating deposited on Si (100) substrate appeared a strained layer on substrate in the ilm-substrate interface, which thickness was 3～5 atom layer.

结果表明：在高速钢基体上制备的AlTiN多层薄膜由两种氮含量交替变化的膜层构成，尽管交替的两层中氮含量不同，但每一单层都为纳米晶包含在非晶点阵中的纳米复合结构，不同之处是低氮含量层中纳米晶密度较小；生长在单晶硅基体(100)晶面上的非晶AlCN薄膜，在膜基界面处硅基体上出现应力畸变层，应力畸变层厚度很薄，约3～5个原子层。

After the addition of carbon, the microhardness in the grain boundary is about 150 MPa higher than that in the grain. The fracture type of pure Mo is intergranular fracture, the grain boundary strength of Mo-C alloy is strengthened due to the addition of carbon and the fracture type is changed to transgranular fracture, transcrystalline fracture and a large number of cleavage planes and steps are observed on the bending fracture surface. But if the carbon content is too high, the carbide precipitation will be severe at grain boundaries and is deleterioated to the ductility of the alloy.

添加碳后，合金的晶界显微硬度比合金的晶内显微硬度高150MPa左右；纯钼的断裂方式以沿晶断裂为主，添加碳后，由于合金的晶界强度得到提高，合金的断裂方式变成以穿晶断裂为主，断口上有大量的解理面，具有明显的河流状花样和解理台阶，且塑性越好的断口，撕裂岭也越多；当添加的碳含量偏高时，在晶界处产生了大颗粒的碳化物，这种大颗粒的碳化物会降低合金的塑性。

In the case of granite, observation results indicate that the extending routes of active cracks are mainly intercrystalline, transcrystalline, inter-transcrystalline, and intracrystalline. When the strain rate is low, the long intercrystalline cracks are prevailing, and with increasing of the strain rate, the short transcrystalline and intracrystalline cracks gradually increase. The statistic results show that the active crack density increases with increasing of the strain rate, and the mean length of active cracks diminishes with increasing of the strain rate, that is, the induced damage in comminuted product increases with increasing of the strain rate. For the first time this dissertation integrates macroscopic results of comminution with active crack growth under impact loading. It elucidates why the dynamic comminution strength of mineral beds increases with increasing of the strain rate through the active crack extending, and analyzes the influence of structure and constitution of minerals on their damage under impact stress. It is authenticated that both the size distribution and the damage population of comminuted product can be characterized by the fractal.

为分析料层颗粒在冲击下的细观损伤效果，采用德国生产的ASM68K半自动图象分析仪对粉碎生成物中的损伤情形进行了观测，以花岗岩为例，观测结果表明花岗岩颗粒在冲击应力下的活化裂纹扩展路径主要表现为沿晶、穿晶、沿穿晶和晶内等形式，在低应变速率下，活化裂纹以沿晶裂纹较多，随着应变速率的提高，其它裂纹形式大量繁衍，统计结果表明活化裂纹密度随着应变速率的增大而增大，活化裂纹的平均长度随着应变速率的增大而减小，综合表现为颗粒的细观损伤程度随着应变速率的增大而增大；首次将应力作用下的活化裂纹演化特征与粉碎的宏观效果相联系，并就料层动态粉碎强度随应变速率增大而提高的现象从裂纹演化特征的角度进行了解释；分析了矿岩构造结构特性对损伤产生和分布的影响。

2The company area more than 60,000 square meters, have the domestic technology leading entire automatic and semiautomatic production line equipment 16, the technical force abundant, craft technological advance, each kind of product examines well appointed, the product quality reliable, the post-sale service is complete, by the electric power company Xi'an hot working research institute, the Hebei Province quality testing center sample survey is reaches the sign product, is saved, evaluates the consumer credit-worthy organization, superposes the same code of honor to use the unit, also is provinces and cities one of hundred strong enterprises.

公司占地面积6万多平方米，拥有国内技术领先的全自动和半自动生产线设备16条，技术力量雄厚，工艺技术先进、各种产品检测设备齐全，产品质量可靠、售后服务周全，被电力公司西安热工研究院、河北省质检中心抽样检验均属达标产品，被省、地评为消费者信得过单位，重合同守信用单位，也是省市百强企业之一。公司主要产品：晶玉橡塑绝热保温材料、晶玉硅酸铝耐火保温材料、晶玉阴阳离子交换树脂、水处理药剂系列产品等。产品热销全国个地市，部分产品已打入国际市场，出口英国、哈萨克斯坦等国。

In this article, the spinel with both four groups of six-pointed star and three groups of four-pointed star have been studied by means of conventional gemmological techniques, Raman spectroscopy and electron probe.

利用常规宝石学技术、拉曼光谱技术和电子探针对具有多组六射星光和四射星光效应的尖晶石进行了研究，发现由于存在多组定向排列的针状包裹体，使尖晶石产生多组星光效应。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。