通过理论分析和实践经验证明，沥青砂层的存在不会造成储罐阴极保护系统失效。
The theoretical analysis and application experience show that the existence of tar sands will not lead to failure of cathodic protection system of the tanks.
阐述了储罐阴极保护的必要性，并重点探讨了沥青砂层及电绝缘对阴极保护系统影响的问题。
The necessity of tank cathodic protection is detailed and impact of tar sand and electric insulation on cathodic protection system is highlighted.
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