Technicians can date paint from its chemical composition, for example, or X-ray a canvas to reveal what lies below the surface.
例如,技术人员可以通过其化学成分分析其创作日期,或者对一幅画做X光透视,揭示其表面下有什么。
To find out why, researchers used sophisticated X-ray analyses to determine the exact chemical composition of the paint as it browns.
为找出原因,研究人员用精密X射线分析仪测定了变成褐色颜料的精确化学成分。
This was a great surprise because everyone thought that the shadow (or X-ray) had been created by a chemical reaction with sunlight.
这种现象引起了人们很大的惊讶,因为当时每个人都会认为影像(或X -射线)是由在阳光的触媒下的某种化学反应所产生。
The scanning electron microscope provides information on chemical composition by use of X-ray spectrometer attachments.
扫描电子显微镜能利用x射线谱仪的附件来提供化学组份的信息。
The new method USES a technology called mini-X-ray fluorescence to detect chemical elements in fingerprints without altering them.
而该新方法使用了“微x射线束荧光技术”,可以探测到指纹携带的化学成分,却不会指纹的保存状态。
X-ray photoelectron spectroscopy proves a very effective mean in identifying the film composition and the chemical states of the elements in the complicated oxide film.
射线光电子能谱是鉴定这类复杂氧化物膜中元素的化学态及膜组成的有效工具。
The chemical and structural components of percolation residue after the immersion experiments were characterized by means of X-Ray Diffraction (XRD) crystallography analysis.
通过X射线衍射(XRD)晶相分析的方法,鉴定了浸泡实验过后的过滤产物的化学组成。
The Sulfur in catalyst have measured by X-Ray fluorescence spectrometry with Fundamental parameter method. The results agree with those obtained by chemical method.
采用X 射线荧光光谱中的基本参数法测定催化剂中硫元素含量, 测量结果与化学分析法一致。
The paper studies the chemical and mineralogical compositions, the technological and physical properties of tripoli by means of chemical analysis. X - ray diffraction and technological test.
借助于化学分析、X射线衍射分析、工艺性能试验等方法,对粉石英的化学成分、矿物成分、工艺物理性质进行了研究。
The method uses a technology called mini-X-ray fluorescence to detect chemical elements in fingerprints without altering them, said Christopher Worley, a scientist on the project.
参与该科研项目的科学家克里斯托弗·沃尔利说,该方法使用了一种“微X射线束荧光技术”,可以探测到指纹携带的化学成分,却不会改变指纹的保存状态。
Strontium titanate powder prepared is characterized by scanning electron micrograph (SEM) and X-ray diffraction (XRD) and is analyzed by chemical analysis, ICP and IR.
用SEM、XRD分析了钛酸锶粉体的形貌及晶相;并进行了化学分析和ICP测试。
According to X ray and chemical analysis, the mechanism of reinforcement rust in concrete is analysed.
根据X射线和化学分析结果,全面分析了混凝土中钢筋锈蚀的机理。
The plasticity, chemical composition, particle size and its distribution, whiteness and so on of jiulong kaolin were measured and analyzed by X-ray and TEM.
测定了九龙高岭土的可塑性、化学组成、粒度及其分布、白度等,并且做了X—射线和透射电子显微镜分析。
By using visual examination, scanning electronic microscope, X-ray energy spectrum and metallurgy and chemical analysis, the cause of crack occurred in bellow expansion joint was analyzed.
采用宏观检查、扫描电镜、X射线能谱、金相分析及化学分析等方法,对金属波纹膨胀节开裂的原因进行了分析。
X-ray photoelectron spectroscopy was employed to analyze the surface chemical properties of specimens of acid treatment and acylation reaction.
利用X射线光电子能谱对酸氧化及酰氯化处理后的样品进行了表面化学性质分析。
The composition depth profile and chemical states of nitrogen-implanted layers were determined using X-ray photoelectron spectroscopy (XPS).
利用X射线光电子能谱(XPS)研究了注氮层中元素的深度分布和化学结构;
Its structure has been studied through a series of chemical synthesis, preparation of derivatives, degradations and IR analyses, and ultimately determined by X-ray diffraction.
本文用衍生物合成、降解反应、红外光谱、核磁共振谱及x -射线衍射晶体分析法研究了它的化学结构。
The phase compositions and characteristics of glass-ceramics products were determined by the comprehensive methods such as optical microscopy, X-ray diffraction, physical and chemical properties test.
通过光学显微分析、X射线衍射分析、物理化学性能测试等手段确定了微晶玻璃的物相组成及性能特征。
The effects of vacuum-baking on the chemical state of CsI photocathodes are studied with X-ray photoelectron spectroscopy (XPS).
本文应用XPS(X射线光电子能谱仪)研究了真空烘烤对碘化铯光阴极化学状态的影响。
The methods of visual inspection, SEM, X-ray EDS, metallography and chemical composition analysis were adopted to research the rupture of flexible metal hose.
采用宏观检查、扫描电镜、X射线能谱、金相检验、化学成分分析等方法,对金属波纹软管开裂的原因进行分析。
It has good chemical stability and resistance to heat, ozone, acid and alkali, UV ray, and weather, etc.
具有良好的化学稳定性及耐热、耐臭氧、耐酸碱、耐紫外线、耐候性等性能。
Using chemical addition method to calibrate absorption effect, trace element in human hair are analyzed with X-ray fluorescence (XRF).
通过化学加入法校正吸收效应,采用X射线荧光分析法(XRF)分析人发样品,确定人发中微量元素的含量。
It was indicated there were polymer crystalline and two solidifying peaks in the rare-earth chemical grouting materials by the electronic microscope photograph, X-ray diffraction analysis and DSC.
从电镜照片,X光衍射图谱和DSC图谱上表明了稀土化学灌浆材料有聚合物的结晶和二次固化峰的存在。
The main results are as follows:(1) Treated by ultraviolet ray and chemical mutagen, 50 isolates were obtained from isolate BC4's conidial suspension.
以灰葡萄孢BC4为出发菌株,通过紫外线和化学诱变剂诱变分生孢子,共获得50个菌株。
All the samples obtained were examined with X-ray diffraction, isothermal adsorption of water, DTA, TG, IR, TEM, and chemical analysis, and were identified as L-type molecular sieve.
产物经X射线衍射,水的等温吸附、差热分析、红外图谱,透射电镜以及化学分析等测定证实为L型沸石。
The X-ray diffraction parameters of carbonization products and the mechanism of chemical reaction of pitch have been analyzed.
流变性能的影响,并分析了添加硫后的沥青碳化产物的X—射线衍射参数的变化及其碳化过程的机理。
Its chemical composition and structure are characterized by the chemical analysis, elemental analysis, IR patterns and X-ray powder diffraction.
经元素分析、X -射线粉末衍射、中红外、远红外光谱进行表征,确定了配合物的组成和结构。
X-ray photoelectron spectroscopy and X-ray diffraction were used to analyze the chemical structure of the DLC films containing ti.
通过X射线光电子能谱及X射线衍射表征了薄膜的化学结构。
X-ray photoelectron spectroscopy and X-ray diffraction were used to analyze the chemical structure of the DLC films containing ti.
通过X射线光电子能谱及X射线衍射表征了薄膜的化学结构。
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