All buried lines are coated with a protective covering to save them from corrosion . 所有埋设的管道必须涂上保护层,以防生锈腐蚀。
Corrosion reactions, with metal dissolution, can occur in both basic and acidic solutions . 使金属溶解的腐蚀反应,可以在碱性也可以在酸性溶液中发生。
Antimonial lead is preferable to chemical lead because of its greater corrosion resistance and strength . 含锑的铅较化工铅好些,由于它有更好的抗蚀性及强度。
The corrosion problem is less in regenerative plants since the heating surface is provided by stones . 在蓄冷器工厂中,因为加热表面是石头提供的,所以腐蚀问题较少。
They found out that even a very thin sheet of this three-ply metal was not damaged by corrosion after five years . 他们发现即使是极薄的“三层合金”板泡上五年也不会腐损。
Many studies in the related area of stress corrosion or subcritical crack growth use simplified test systems . 许多有关应力腐蚀或亚临界裂纹发展领域的研究使用了简化的试验系统。
If fumes reach the charging units serious corrosion of metal parts can be expected and this can cause trouble . 如果酸雾触及充电器,金属零件将发生严重腐蚀,并可能引起故障发生。
Since the buildup of impurities often results in defective plating such as discoloration or loss of corrosion resistance . 因为杂质的积累经常导致不良的电镀,如脱色或丧失防腐性能。
aggressive corrosion of well casing and heat exchangers can be caused by , hcl, , and other acids. 井孔套管和热交换器的侵蚀性腐蚀是H2S,HCL,H2SO4和其他酸类引起的。
Acid alkali resistant and corrosion resistant coatings 耐酸硷、重防蚀涂料。