Water and oxygen are the causes of failure.Corrosion degree depends on the water content and oxygen content.Timely inspection and repair of the anticorrosive coating will be very effective.

• 指出水和氧气是防腐层失效的原因,含水量和含氧量决定腐蚀程度,应采取有效措施对防腐层进行及时检查与修复。