The results indicated that the dejects was caused by pitting corrosion of impurity element iron in silver coin by environmental chloride compound.
结果表明，在银币缺陷部位的腐蚀坑内存在以铁元素为主的物质，基材中的铁元素与外界的氯引起银币的腐蚀，造成了表面缺陷。
In order to research the magnetic field distribution of electromagnetic flow meter in annular space, electromagnetic flow meter`s sensor model is established by the finite element analytical method and its magnetic field distribution is also simulated and studied. The affection of ferromagnetic impurity flowing through measuring field is also simulated and studied.
为考察电磁流量计的磁场在环形空间的分布情况，通过有限元分析方法建立了电磁流量计传感器模型并进行了磁场仿真研究；同时对流体中混有的铁磁性杂质流过测量场域时对磁场分布的影响也进行了仿真研究。
The 2E12 aluminum alloy with high-intensity and heat-resisting belongs to Al-Cu-Mg series aluminum alloy, its American trademark is 2524, It is a new aluminum alloy on the foundation of 2024 alloy, through reducing impurity element and so on the Fe, Si content, improving the alloy fracture toughness, fatigue and the anti-stress corrosion performance.
2E12铝合金为Al-Cu-Mg系高强耐热铝合金，它的美国牌号为2524，它是在2A12(2024)合金的基础上，通过降低Fe、Si等杂质元素的含量而进行改善合金的断裂韧性、疲劳和抗应力腐蚀性能的新型铝合金。
The results indicate that the impurity element segregation results in the formation of intermediate crack in castings, the content of S should be controled strictly specially; in the meantime, the production flaw was systematically analyzed in the aspects of steel-smelting, pouring, production process and equipment, it can be found that these factors have different effect on the formation of intermediate crack.
分析结果表明：铸坯中间裂纹的形成主要是杂质元素的偏析造成的，特别要严格控制S元素的含量；同时从炼钢、浇注、生产工艺、设备等方面进行系统的分析，发现它们对中间裂纹的形成都有不同程度的影响，并采取了有效的措施，使中间裂纹得到控制。
The results show that the solidification of DZ68 alloy mainly completes between 1370 and 1310 ℃, and the final set temperature is confirmed between 1180 and 1200 ℃. The segregation coefficients of W, Re, Ta and Al in DZ68 alloy are obtained as 2.2, 4.5, 0.58 and 0.8, respectively. The segregation coefficients of different elements show that W and Re are strong negative segregation elements and Ta is strong positive segregation element. The impurity elements of S, P, B and Si are severely clustered in the interdendritic area.
结果表明：DZ68合金的凝固过程主要在1 370~1 310 ℃内完成，合金的终凝温度介于1 180~1 200 ℃之间；DZ68合金中主元素W、Re、Ta、Al的偏析系数经测定分别为2.2、4.5、0.58和0.8，其中W和Re为强烈负偏析元素，Ta是强烈正偏析元素；有害杂质元素S、P、B和Si在枝晶间发生严重偏聚。
Because part of liquid waste of printing and dyeing is complex changeful, COD is tall, often contain impurity of a variety of organic dye auxiliary, fat dose, soda acid, fiber and inorganic salt, its water measures big, chroma deep, and the nitro- in dye structure is mixed amine radical compound and heavy metal element have bigger biology noxiousness, it is the difficulty of processing of industrial waste water and recycle all the time.
由于印染废水成分复杂多变，COD高，往往含有多种有机染料助剂、油剂、酸碱、纤维杂质及无机盐，其水量大、色度深，且染料结构中硝基和胺基化合物及重金属元素具有较大的生物毒性，一直是工业废水处理(通过物化方法去除水中一些物质的过程)及再利用的难点。
Effective air handling and regeneration system is needed to wipe off harmful impurity inside enclosed space and to maintain required air purity and necessary gas element since the air inside the enclosed space can't exchange with the atmosphere.
封闭舱室不能与大气中的空气进行交换，必须去除舱室中有害杂质，维持必需的气体成分和纯净度，需要一套有效的空气调节和再生装置来完成这一任务。
The effect of main alloying element Mg, Si and impurity element Fe, Zn on microstructure and property of Al-Mg-Si aluminum alloy was studied, and the reasonable proposal is given based on the mechanism of alloying element.
以Al-Mg-Si系合金材料为研究对象，实验研究了主要合金元素Mg、Si和杂质元素Fe、Zn对合金组织及性能的影响，并在分析作用机理的基础上给出了改善材料性能的合理化建议。
Acidwashing, activating and impurity in the course of dressing in pretreatment had a great influence on the bond strength, especially impurity element, i. e. Fe, C, etc., made the bond streng...
前处理中酸洗、活化以及在对镁合金基体打磨过程中残留的杂质对镀层结合强度的影响较大，特别是Fe、C等杂质元素的掺入使得镀层的结合强度大大降低；pH值也对镀层的结合强度有很大影响，随着pH值的升高，镀层的结合强度降低。
Aiming at the present techniques which tetrapod-like ZnO whiskers (T-ZnO) was prepared from pure zinc powders, the process that T-ZnO were directly obtained from waste galvanizing zinc by vapor oxidation and behavior of impurity element were investigated.
针对制备四针状氧化锌晶须（TZnO）均采用高纯锌粉为原料的现状，研究了直接以热镀锌渣制备TZnO的方法和原料中杂质元素的行为。
A study on interaction Of rare-earth element impurity with neutron irradiation defects in Si
半导体Si中稀土元素杂质与中子辐照缺陷的互作用研究
Measurement results of impurity concentration show that implanted P element distributes mainly in collector region and has no obvious influence to the impurity distribution in emitter and base.
扩展电阻的测试结果显示出注入的P离子基本上集中在集电区的位置，对发射区和基区未造成显著影响。
The welded seam of pipeline steel shall have high strength and high toughness. The S, As contents of main impurity element in welded seam must keep in the lower level.
管线钢焊缝应具有高强度高韧性，焊缝中主要杂质元素S，As的含量须保持在较低的水平。
Influence of characteristic X-ray of impurity element on anonymous spectral lines excited by hydrogen gas discharge source bombarding targets
杂质元素特征X射线对氢气放电源打靶新谱线的影响
The results indicated that the defects was caused by pitting corrosion of impurity element iron in silver coin by environmental chloride compound.
结果表明，在银币缺陷部位的腐蚀坑内存在以铁元素为主的物质，基材中的铁元素与外界的氯引起银币的腐蚀，造成了表面缺陷。
It is shown by experiment that large number of (100) crystal face, proper dislocation etching pits and low content of impurity especially Fe element are the key factors influencing on specific capacitance of high voltage capacitor foil.
实验表明大量的（100）晶面，适量的位错蚀坑、低杂质含量尤其是Fe元素量是提高高压铝箔比容的关键因素。
PHI-650 scanning Auger multi-probe (SAM) was used to study the surface oxidation and impurity element diffusion of the in situ fractured uranium surfaces at various oxygen exposure and temperatures in ultra high vacuum.
采用PHI-650型扫描俄歇电子能谱（SAM）研究金属铀在超高真空原位断裂后断面在不同氧气暴露量和温度下的氧化规律和杂质元素在表面的扩散行为。
This paper respectively simulated and computed magnetic line, magnetic induction value, magnetic flux, inductance and impurity loss of detecting magnetic cores of a big magnetic pole, unilateral array magnetic poles and symmetry array magnetic poles by finite element analysis soft ANSYS.
并应用ANSYS有限元分析软件分别仿真、计算了单个大磁极、单侧阵列式磁极和对称阵列式磁极探测磁芯的磁力线、磁感应强度值、磁通量、电感以及杂质的损耗。
Mechanism of Interaction Relation between Rare Earth Element Cerium and Impurity Elements Lead and Bismuth in Ag-Based Filler Metal
银基钎料中铈与杂质元素铅、铋作用机制
The article discussed the new technology of using inductive coupling plasma mass-spectrometric method to determine the trace element in high-purity gallium. In test, gas-solide reaction theory was used to separate gallium and concentrate impurity.
探讨了电感耦合等离子体质谱仪（ICP-MS）测定高纯镓中痕量元素的新技术，实验采用气固反应原理分离镓主体，富集杂质元素；