腐蚀的

The results show that the samples exposed to the air previously for 24 h can be passivated automatically in acetic acid solution with Cl- with the corrosion potential remaining 100mV.No such phenomenon was observed for samples which were cathodically polarized with the corrosion potential stabilizing at a value of -242±3mv. The passive film formed by anodically polarizing is more proof than formed in the air.

研究还发现：在空气中放置24小时后的试样在Cl-醋酸溶液中能自钝化，自腐蚀电位为100mv；经阴极极化后的试样在Cl-醋酸溶液中不能自钝化，其自腐蚀电位为-242±3mv；经阳极极化形成的钝化膜比在空气中自然形成的钝化膜更致密。

The failure behavior of SS316L has been investigated under environment and stress coaction by corrosion fatigue device.

本工作运用自制的腐蚀疲劳试验机，研究了在环境与应力协同作用下，316L不锈钢的失效行为和过程，证实了不锈钢的失效过程中存在着多种腐蚀类型的交。。。

Due to the corrodibility of soil and roughness of corrosion protection presently, old fuel gas pipes in Shen Zhen suffer severe corrosion, confronting a great deal of accidents after more than ten years' running.

摘要由于深圳土壤的强腐蚀性和当初防腐工作的粗糙和不完善，深圳旧燃气管道遭受严重的腐蚀，经过十多年的运行，腐蚀老化严重，已经到了事故多发阶段，因此对旧燃气管道进行防护势在必行。

The impurity ion of F~-,Cl~-,SO_4~(2-) addition to demineralize water with 700mg/L N8338, the result shows that there is no obvious effect to the corrosion of material.

在缓蚀剂N8338浓度为700mg/L的去离子水腐蚀介质中添加F-、SO42-、Cl-杂质离子，在所研究的杂质离子浓度范围内对四种材料的腐蚀没有明显的影响。

Anhydrous magnesium chloride may be prepared from materials containing magnesium chloride such as magnesium chloride hydrate, carnallite or bittern by different dehydrating methods of organic solvent distillation or molecular sieve absorption, gas protective heating, discomposing the MgCl2-NH3 complex that can be composed from high boiling-point polar-solvent system...

无水氯化镁制备技术经历几十年不断的探索，取得了一些进步，但彻底改变耗能高、污染腐蚀严重、流程复杂的工艺过程，开发流程简单、低污染腐蚀、低成本的绿色工艺仍然需要更深入的研究。

Through training and simulating the data came from the indoor simulation orthogonally experiment and the field survey, the web model based on Matlab language to forecast 20# steel's corrosion behavior in Daqing oil field is built.

用基于Matlab语言的人工神经网络工具箱对从室内模拟埋片实验及现场调查得出的土壤腐蚀数据进行训练、仿真，从而建立了能够预测20#钢在大庆油田地区土壤中的腐蚀行为的网络模型。

This method proved scientific in theory and easy to routinize,and provided an effective technique for evaluating the situation of corrosion and its prevention of the underground oil pipeline.

通过综合分析的方法，确定埋地输油管道的腐蚀与防护势态，对提高管道腐蚀与防护管理的针对性、科学性和决策的正确性具有重大意义。

Through the addition of rare earth oxidation La_2O_3 and CeO_2 into the electrode coating , the effect of rare earth oxidation on high temperature oxidation and sulphidation resistance is studied and the rational addition amount is suggested.

通过A402，A302，A202及Cr24Ni7不锈钢焊条熔敷金属的抗高温氧化腐蚀性能对比试验分析，设计了新的专用焊条合金系统Cr26Nil6，并在焊条药皮中分别添加微量稀土氧化物La2O3及CeO2，研究不同稀土氧化物添加量对焊条熔敷金属在空气中和含硫气氛中抗高温氧化及腐蚀性能的影响，从而确定了合理的稀土氧化物加入量。

It permanently erodes the character of the torturer and, worse, of the public that condones the torture.

对酷刑的容忍，会永远腐蚀刑讯者的品格，更糟的是，腐蚀大众的品格。

Experiment results show as follows in the processing of semiconductor etching, chemical heat centers in the semiconductor material, and is convected gradiently in all directions; the vertical heat convection velocity is obviously swifter than the horizontal; the process of heat convection can be real- timely recorded, and the heat convection situation can be gotten in any small area at any time by infrared camera which makes the analyse and understanding of heat convection characteristic in the processing of wet etching more intuitionistic.

实验结果表明：在半导体腐蚀过程中，化学热以半导体材料为中心，向四周梯度状对流；向上的热对流速率明显大于水平的热对流速率；红外热像仪可以实时纪录热对流过程，并获得任意时刻、任意小区域的热对流情况，使得对湿法腐蚀过程中热对流特性的分析和理解更加直观。

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。