By material and crystal analysis of the swollen and cracked pyrolysis furnace tubes, summarizes reasons for the failure of the tubes, and proposes preventive measures.
通过对其鼓包及开裂的裂解炉炉管进行材质和晶相组织分析，找出了炉管故障发生的原因，并提出了具体的预防措施。
It also describes the many types of information that can be obtained by modern crystal structure analysis.
书中也描述了各种通过现代晶体结构分析能够得到的信息。
HPLC methods were used for the qualitative and quantitative analysis. The purity of carotene crystal was 88.56% by HPLC method.
用高效液相色谱对纯化样品进行了定性和定量分析，结果显示三次重结晶后胡萝卜素纯度为88.56%。
Two designs of the fly eye lenses are introduced on basis of the analysis on liquid crystal projection displays.
在对液晶投影照明系统的原理进行分析的基础上，提出了两种复眼透镜的设计方案。
The crystal field and the spectrum experiment analysis get the coincident conclusion.
这与用晶体场理论和光谱实验观测解释的呈色机制是一致的。
Analysis result shows that the reference signal can be highly precise and provide an adjustable performance if the given frequency of crystal is high enough.
通过分析可知，只要晶振频率足够高，生成的基准信号就有足够高的精度，而且信号的参量具有良好的可调节性。
The X-ray analysis reveals that the crystal structures of compounds 1 and 2 are two-dimensional layer structures through intramolecular hydrogen bonding and -? stacking.
射线分析显示化合物1和2的晶体结构均由分子间氢键和-弱相互作用堆积而成的二维层状结构。
Depicts the implementation of VRML in crystallography; discusses its applications to the crystal structure teaching, crystal structure analysis and plotting, science exchange, etc.
叙述了VRML在晶体学中的实现方法，以及在晶体结构教学、结构绘图和结构分析、学术交流等方面的应用。
In this paper, a new theoretical analysis method for diffusion of interstitial atom in crystal materials has been presented.
本文提出间隙原子在晶体材料中扩散的微观过程的新的理论分析方法。
We investigate the generation, properties and applications of optical solitons in nonlinear photonic crystal (PC) waveguides by theoretical analysis and numerical simulation.
本文采用理论分析和数字模拟相结合的方法研究非线性光子晶体波导中光孤子的产生、特性及其应用。
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.
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。
In order to implement the multi-channel filtering of the photonic crystal, the numerical calculation and theoretical analysis for the one-dimensional photonic crystal were performed.
为了实现光子晶体的多通道滤波，对设计出的一维掺杂光子晶体进行了数值计算和理论分析。
NET reflection technology to implement dynamic management, by using Crystal Reports can we get accurate statistics and analysis.
NET反射技术实现试题的动态管理，测验成绩通过水晶报表实现的准确的统计分析。
A new supramolecular compound has been synthesized under hydrothermal conditions and characterized by element analysis, IR, TG analysis and single-crystal X-ray diffraction.
在水热条件下合成了一种新型超分子化合物，通过元素分析、红外光谱、热重分析和X射线单晶衍射方法确定了其晶体结构。
The design and analysis of all-fiber magneto-optic switch made of magneto- optic crystal fiber.
磁光晶体光纤型全光纤磁光开关的设计与分析。
The crystal structure was determined by X ray single crystal diffraction analysis.
用X射线单晶衍射分析法测定了该配合物的晶体结构。
The synthetic process and the crystal structure of stain, with the aid of thermal analysis and X ray diffraction studies, were discussed.
借助热分析和X-射线衍射分析讨论了色料的合成过程和晶体结构。
Through the analysis of elements affecting the rough crystal zone in pipeline steel weld, it raises the flexing direction of rough crystal zone of pipeline steel.
通过对管线钢焊接粗晶区韧性影响因素的分析，提出了管线钢粗晶区的韧化方向。
Their heat stability difference were compared by X-ray crystal structural analysis and TG-DTA analysis. The results showed a similar crystal structure and different heat stability.
X 射线晶体结构分析与TG DTA分析表明，镍铁与镁铁水滑石晶体两者结构相似，但热稳定性存在一定差异。
From a quite long time, the research on crystal growth mechanism has been mainly based on the indirect theoretical analysis.
长期以来，晶体生长机理的研究大多是间接的理论分析。
Phase analysis shows that the distance of crystal face of WC increases and oxide film of Y forms on the surface by Y ion implantation.
相分析表明，离子注入使WC晶面间距增大，稀土元素Y的注入在材料表面形成了Y的氧化物膜层。
Some certain researches and theoretical analysis on it were carried out, and wet clean method was proposed for removing the pad crystal defect.
国际上已经对这一缺陷的形成有了一定的理论分析，也提出了可以通过湿法清洗来去除此缺陷。
The working frequency and crystal Angle for optimal sensitivity were obtained by theoretic analysis and experiments. Its practical application was satisfactory.
由理论分析和试验，给出了最佳灵敏度时换能器的工作频率和晶片倾斜角，实际应用效果良好。
The results of XRD analysis showed that the crystal type of corn starch was disappeared after the fermentation.
X射线衍射分析结果表明，发酵使得玉米淀粉晶型结构消失。
The structure of the liquid crystal compound was confirmed by IR, 1HNMR and elementary analysis. The phase transition temperature of it was measured by DSC.
目标化合物经IR，1HNMR和元素分析仪确证了分子结构，运用差示扫描量热仪（DSC）测定了液晶相态温度范围。
SEM analysis showed that the crystal structure of a good size is about 200 nm or so, XPS analysis showed the traces of manganese, near-ideal theory.
SEM分析表明其晶体结构良好，粒径大约在200纳米左右，XPS分析表明含有微量的三价锰，近乎于理想的理论计算。
Test and analysis some properties such as crystal structure, superficial resistivity, light transparence, absorption coefficient etc.
并对薄膜的晶相结构、电阻率、光透过率、光吸收系数等电学和光学性质进行了测试和分析。
Through analysis for the performance features of laser crystal end-pumped by a diode laser, a quadrate laser crystal thermal model is established.
通过对二极管激光器端面抽运激光晶体工作特点的分析，提出了长方形激光晶体热模型。
Through analysis for the performance features of laser crystal end-pumped by a diode laser, a quadrate laser crystal thermal model is established.
通过对二极管激光器端面抽运激光晶体工作特点的分析，提出了长方形激光晶体热模型。
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