腐蚀的

The distribution of corrosion potentials became inhomogeneous gradually with increase of immersion time.

例如在海洋环境中，铝的主要腐蚀破坏形式是点蚀和缝隙腐蚀。

It is proved by practice and tests that crystallizable erosion of concrete by sulfates in water and soil is one of the most serious ones influenced by macroclimate.

水、土中硫酸盐对混凝土结晶腐蚀，经工程实践和实验研究证明是受宏观气候影响最大的一类腐蚀。

The results show that FGH95 alloy has good hot corrosion resistance characteristics at 650 ℃, and its corrosion kinetic curve obeys a parabolic rule.

研究结果表明： FGH95合金在650℃具有较好的抗热腐蚀性；在700和750℃下， FGH95抗热腐蚀能力下降，腐蚀严重。

Etching:(1)In photoengraving,the eating away of the non-printing areas of the printing plate by acid to produce a relief printing surface,or in gravure,the eating away of the image into the copper printing plate by acid.

1腐蚀，(2)版面腐蚀，(3)蚀刻版画：(1)在照相雕版方面，用酸把非印纹部份蚀去，造成凸版。在版方面，则用酸把铜片上的印纹蚀去。

Atmospheric corrosion rate of pure copper , composition and protectiveness of corrosion product of pure copper was different under the different exposure conditions .

不同暴露环境下，纯铜的大气腐蚀速率，腐蚀产物组成及其保护性都存在差异。

Since the old wells in this gas reservoir were shut in almost 13 years ago, either the workover or the gas production has faced all kinds of technical difficulties and safety risks in terms of wellbore corrosion evaluation, recompletion, corrosion and prevention, and hydrate prediction and control, etc.

该气藏老井封存时间长达13 a，修井采气面临井筒腐蚀评价、重新完井、腐蚀与防治、水合物预测等难题，存在较大的技术难度和安全风险。

The examination of the steel bar corrosion and the determination of the corrosion condition may provides the foundation data of the reinforced concrete structure residuary load and the structure durability.

钢筋腐蚀检测和腐蚀状况判定可为钢筋混凝土结构的剩余载荷和结构耐久性提供基础数据。

The laser used for Raman excitation in the experiment would assist the etching process of Si in DHF and roughen the silicon surface.

研究了DHF腐蚀硅片时表面氢终端的变化过程，并指出表面微粗糙度随腐蚀逐渐增加。

Therefore, it is very important to improve the anticorrosion performances of magnesium alloys in industrial applications.

因此，在工业上应用中，使镁合金不易腐蚀（直译为：提高镁合金的反腐蚀能力），变得很重要。

A silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide .

一种银色金属元素，可延展、抗腐蚀，用于许多合金中，亦用于包裹其他金属以防其腐蚀，主要取自锡石中的锡氧化物。

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。