腐蚀的

Results show that this etchant has a stable etching rate to both GaSb and AlGaAsSb compound materials; under suitable solution composition quite low etching rate could be obtained, which are useful for the fabrication of GaSb/AlGaAsSb devices.

该腐蚀液对于GaSb和AlGaAsSb材料具有良好的腐蚀特性和稳定的刻蚀速率。选用合适的溶液组份可以得到较低的刻蚀速率，有利于在器件工艺中进行精确控制。

The effect of environment corrosion and salt fog on fatigue properties of 3 types of bolted joint structures and 12 kinds of protective measures of LY12CZ Al- alloy plate typical bolted lap joints was studied by an accelerated corrosion test.

采用加速腐蚀试验方法，研究了环境腐蚀和盐雾对LY12CZ铝合金板材的3种螺接型式、12种防护处理的典型螺接搭接件疲劳性能的影响，提出了几种较适用的螺接结构细节防护方法。

In this paper a computation model of corrosion rate versus grain size of nanocrystalline zircaloy -4 has been presented.

结果表明：与普通晶粒相比，纳米晶粒尺寸下锆合金的速率低于普通晶粒锆-4合金的腐蚀速率，随着纳米晶粒尺寸的减小，锆-4合金的腐蚀速率也降低；同时，纳米化组织处理推迟了锆-4合金氧化转折时间，使其抗氧化性能得到了提高。

We report the liner oil tube 's structure,performance,the controlling rod-tubing wear mechanism and characteristics.

高密度聚乙烯内衬油管既有塑料管耐腐蚀和耐磨性好的特点，又具有钢质油管的机械强度，在腐蚀偏磨严重的油井上应用取得了较好的效果。

The corrosion problems bring unpredictable influence and loss in the oil-gas field development and the production process. Thus we need to solve the salts corrosion protection problems on oil gas well tube and equipments.

在油气田的开发与生产过程中，腐蚀带来的影响和损失是不可预见的，这其中我们需要解决盐水对油气井管道及设备的腐蚀防护问题。

Product formation lined face, smooth and strong, with the traditional steel lined with plastic, steel-lined glass, compared with a good corrosion resistance, wear-resistant, long life etc. It is ideal for shipments of liquid corrosion products, can also be applied to 90 ℃ below the low-pressure tanks, vacuum tanks, reaction vessel, such as exchange column.

产品内衬面平整、光滑、坚固，与传统的钢衬塑、钢衬玻璃相比，具有良好的耐腐蚀、耐磨损、寿命长等优点，是装运腐蚀液体的理想产品，亦可应用于90℃以下的低压罐、真空罐、反应釜、交换柱等。

The transfer resistance of corrosion process increased with the increment of temperature and prolonging the immersion time,this is related to the compact property of the corrosion film.

随着浸泡时间的延长和温度的升高，腐蚀过程的传递电阻增加，这与高温下生成腐蚀膜的致密性有关？

Product formation lined face, smooth and strong, with the traditional steel lined with plastic, steel-lined glass, compared with a good corrosion resistance, wear-resistant, long life etc.

产品内衬面平整、光滑、坚固，与传统的钢衬塑、钢衬玻璃相比，具有良好的耐腐蚀、耐磨损、寿命长等优点，是装运腐蚀液体的理想产品，应用于90℃以下的低压罐、真空罐、反应釜、交换柱等。

Product formation lined face, smooth and strong, with the traditional steel lined with plastic, steel-lined glass, compared with a good corrosion resistance, wear-resistant, long life etc.

产品内衬面平整、光滑、坚固，与传统的钢衬塑、钢衬玻璃相比，具有良好的耐腐蚀、耐磨损、寿命长等优点，是装运腐蚀液体的理想产品，亦可应用于90℃以下的低压罐、真空罐、反应釜、交换柱等。

Product formation lined face, smooth and strong, with the traditional steel-lined tank plastic board, glass-steel-lined steel tank, it has a better corrosion-resistant, non-leaking, non-peeling, wear-resistant, long life, etc., corrosive liquid is ideal for shipping container storage and transportation, can be applied to 100 ℃ the following motor transport tanks, low pressure tanks, vacuum tanks, reaction vessel, the exchange column, pickling tank, trough, such as electroplating.

产品内衬面平整、光滑、坚固，与传统的钢衬塑料板储槽、钢衬玻璃钢贮槽相比，具有更良好的耐腐蚀、不渗漏、不剥离、耐磨损、寿命长等优点，是装运腐蚀液体的理想储运容器，可应用于100℃以下的汽车运输槽罐、低压罐、真空罐、反应釜、交换柱、酸洗槽、电镀槽等。

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。