多处损伤（MSD）是影响老龄飞机结构完整性的重要因素之一。

Multiple Site Damage (MSD) is one of important factors which affect structural completeness of old aircraft.

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腐蚀控制是保证飞机结构完整性的重要方法，是实现飞机结构长寿命、高可靠性、低维修成本的重要保证。

Corrosion control is one important method to guarantee airplane structural integrity, and to realize the airplane structural long life, high reliability and low maintenance costs.

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使用维护既是保持飞机结构和恢复飞机结构完整性和高可靠性的重要措施，也是防止和延缓飞机结构腐蚀的重要途径。

Airplane maintenance is not only the important measure to keep and recover structural integrity and high reliability, but also approach to prevent and delay structural corrosion.

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