查询词典 impurity

Amino to acetyl phenol, in have technology of two kinds of production domestic and internationally, acetic anhydride craft of the United States, acyl changes temperature to have 75 ℃ only, acyl changes mother liquor not apply mechanically, deputy reaction is little, of production thick tasting is kind of white almost, purificatory craft is very simple, activated carbon dosage only 2~3%, the Kun that its product does not have glow material almost in different third alcohol inferior the sealed impurity of amine impurity and minim, settleclear lightness it may not be a bad idea, the product quality that acetic anhydride craft produces is good, but close rate low, cost is high.

对乙酰氨基酚，在国内外有两种生产工艺，美国的醋酐工艺，酰化温度只有75℃，酰化母液不套用，副反应少，生产的粗品几乎是类白色，精制工艺就非常简单，活性炭用量仅2~3%，其产品在异丙醇中几乎无红光物质的醌亚胺杂质及微量的未知杂质，澄明度也好，醋酐工艺生产的产品质量好，但收率低、成本高。

1 Steel plant,and profound analysis was carried out for the capability of reducing impurity of blowing-argon,ladle reefing,middle-vessel,crystallizer,and the infection of variant deoxidation ability on the content,composition and shape of the impurity in carting blank,through gas-analysis,image-analysis and electron microscope scan.

为了解济钢一炼钢钢水纯净度的实际状况，选择两个典型钢种BC和AH32为分析对象，通过气体分析、图像分析和电子显微镜扫描分析分别对吹氩处理和LF炉精炼处理、中间包和结晶器去除夹杂物的能力及采用不同的脱氧工艺对铸坯夹杂物含量、组成及形态的影响进行了深入分析，找出了全氧和氮的变化规律、夹杂物粒度分布及主要组成，为研究如何降低夹杂物含量和改变夹杂物形态提供了技术基础。

The calculated results indicated central wavelength of impurity mode and whole forbidden band move towards shortwave when incidence angles increase. Remotion of impurity mode of P-wave consist with that of S-wave basically.

研究结果表明，杂质模的中心波长及整个光子禁带随入射角的增加逐渐向短波方向移动，P偏振光和S偏振光的杂质模的移动情况基本一致。

This kind of oil wastewater is a complex system in which comprise solid impurity, liquid impurity and resolvable salt.

这种含油污水是一种含有固体杂质、液体杂质和溶解盐类等较为复杂的多相体系。

Through test and analysis, it is believed that the main cause of failure of the short inlet pipe of main platen header is low smelting purity and high impurity content of steel, and original cracks formed by concentrated impurity along the pipe longitudinally during rolling, which leads to tear-off.

通过试验，分析部件失效原因为：钢材冶炼纯净度低致使夹杂物超标，在随后的轧制过程中形成沿管子纵向分布的密集夹杂物构成的原始裂纹，从而导致开裂。

In order to improve the impurity controland to increase the interaction of ions with neutralgasin FEB Edivertor,the dynamicgastargetdivertorisdesigned by meansofcom bination ofgaspuffing and impurity injection.

为了提高FEBE偏滤器的杂质控制和增加FEBE偏滤器处离子与中性气体的相互作用，用喷气和杂质注入的方法设计了动态气体靶偏滤器。

It can be used for determination of dicyanodiamide and impurity(1) and impurity(2) in Metformin hydrochloride and Glibenclamide Tablets.

结论本方法专属性强、操作简便、准确度高、重现性好。

The paper solved the problems of less valid data in thermal infrared imager,impurity being on surface of specimen and uneasy dipartite corrosion area in image which happened in detection of structure parts' hidden corrosion by thermal wave imaging.Firstly,the contrast of one unheated image was enhanced by self-adaptive mathematical morphology sharpening,and then location of the impurity was confirmed by change of the image grads.

针对飞机结构隐藏腐蚀热波成像检测中出现的试件表面存在杂物、热像仪中有用数据较少、图像序列中腐蚀区域不明显等情况，首先通过对加热前的一幅图像进行自适应形态学锐化处理，提高图像的对比度，并根据图像梯度的变换情况确定出杂物的位置。

On the silicon substrate an epitomical layer is made,where IC components are formed subsequently.In an CVDprocess,the silicon substrates places in a vacuum crystal tube are first heated to 1,600°C by high-frequency radio power and then H⒉Cl⒉Si and certain gaseous compounds of As or P is injected into the tube to make a deposit of several um on their surface.Ions of As or P are impurity deliberately added to the singl-crystalline silicon structure to supply electrons that transmit "negative"current in the silicon crystals,which is called n-type silicon.Bcan be added as impurity to produce p-type silicon that supplies holes for transmitting "positive"current.Whether a p--type of an n-type silicon substrate is needed depends on what type of transistors is expected to be manufactured on it:n-p-n type of p-n-p type

对硅衬底上的一个epitomical层了，而IC零件形成subsequently.in一个CVD法（化学气相depsition ）过程中，硅衬底的地方在真空晶体管均先加热至1600 ° C时，由高频率的无线电功率，并然后h ⒉氯⒉硅和某些气态的化合物，砷或P ，是注入试管，使存款的几位嗯对他们surface.ions的作为或P是杂质刻意添加到单结晶硅的结构，以供应电子传递的&负面&目前，在硅晶体，即所谓N型silicon.b ，可以增加一条，作为杂质产生的p型硅供应孔转递&积极& current.whether一个P -类型的一个n型硅衬底，是需要靠哪些类型的晶体管预计将在制造上它： NPN型的PNP型

The variational method and the effective mass approximation are used to calculate the phonon effects on the hydrogenic impurity states in a cylindrical quantum wire with finite deep potential by taking both the couplings of the electron-confined bulk longitudinal optical phonons and the impurity-ion–LO phonons into account.

采用有效质量近似和变分方法，同时考虑电子-约束型体纵光学声子及杂质离子-LO声子耦合，计算了有限深柱形量子线中杂质的极化效应。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐