腐蚀的

Experimental results indicate that silicon tips of octahedron and tetrahedron are fabricated with changing mask directions. The direction of mask does not affect the rapid etched crystal planes at the fixed solution concentration and temperature.

实验结果表明：当腐蚀溶液浓度和温度一定时，正方形掩模的方向并不影响快腐蚀晶面的类型，利用正方形掩模的偏转，可以制备出八面体和四面体的硅尖。

The effect of cold-deformation amount and annealing temperature on the dezincification of the unleaded free-cutting brass were investigated.

采用脱锌腐蚀深度测量方法，光学显微镜分析和SEM等分析方法，研究了不同的冷变形量和退火温度对无铅易切削铋黄铜的耐脱锌腐蚀性能的影响。

Original image on the image by ultraviolet irradiation in corrosion-resistant membrane (on the printing plate cylinder electrodeposit to the membrane corrosion) or carbon paper, the membrane to the drum, in lukewarm water, carried out by chemical etching with ferric chloride, resulting in the depth of the screen.

原版上的图像经紫外线照射成像于耐蚀膜（对印版滚筒镀层进行腐蚀所用的膜）或碳素纸上，再将此膜包裹于滚筒上，在温水中显影，通过氯化铁进行化学腐蚀，形成深浅不一的网孔。

SEM is used to observe the morphology of the samples after the corrosion test, and the effects of ZrO2 concentration on the corrosion resistance of the nano composite electroforming deposits are analyzed, and its corrosion resistance mechanism is discussed.

用SEM观察了各种样品腐蚀后的表面形貌，分析了纳米ZrO2微粒复合量对复合电铸层耐蚀性的影响，同时对纳米复合电铸层的腐蚀机理进行了初步探讨。

The crevice corrosion rate of 00Cr25Ni22Mo2 in oxidative medium is much greater than that in reductive medium, but the law for titanium quite the rev erse. There is much effect of temperature on the crevice corrosion rate.

结果表明：在有缝隙的情况下， 00Cr25Ni22Mo2不锈钢在氧化性介质中的缝隙腐蚀速率明显大于在还原性介质中的缝隙腐蚀速率；工业纯钛则恰恰相反。

This paper introduced evolvement,feature,mechanism,harm and prevention of filiform corrosion .

丝状腐蚀是一种线型的涂膜下腐蚀，20世纪60年代在钢质药筒的储存过程中发现，并进行了大量的研究工作。

The atmospheric galvanic effects in Beijing compared with other cities indicate that atmospheric environment is most important factor.

通过与其它地区室外暴晒的镁合金电偶腐蚀效应的对比，表明环境因素影响着镁合金的电偶腐蚀效应。

Pure iron specimens were implanted by nitrogen ions with a fluence of 7×1017 ions/cm2 using ion beam implantation at an extracted voltage of 40kV.Composition and valence studies were carried out by X-ray photoemission spectroscopy;Glancing angle X-ray diffraction was employed to examine the phase transformation.

采用40kV的氮等离子体离子注入工业纯铁，注入剂量为7×1017ions/cm2，X射线光电子能谱研究表面注入层元素的成分和价态，X射线衍射分析注入层的物相转变，采用恒电位极化腐蚀试验研究了离子注入后材料在人工模拟体液中腐蚀行为。

The samples made by this technology were exposed to a salt spray box.

所制备的试样经盐雾腐蚀后表面出现明显的荧光斑点，荧光斑点处用光学显微镜观测可见腐蚀现象，而在可见光下观测并未有明显变化。

Results show that the corrosion rate increased with increasing voltages and decreased with increasing specific resistance of soil.

为加强对油田电泵井套管的腐蚀控制，通过室内模拟交流杂散电流腐蚀试验，考察了交流杂散电流对电泵井套管的腐蚀性。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。