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.
用可编程序控制器控制砂处理自动线，提高了该线的自动化程度和可靠性，故障率低，维修方便。
With control of PLC on sand preparation automation line level of automation and reliability has been increased, breakdown lowered and maintenance easy.
实践表明，除可靠性大为提高外，控制系统还具有操作简单、功能完善和容易维修等特点。
Practice shows that excepting the reliability being improved magnificently, the controlling system is in feature of simply to operate, perfect in performance and easy to maintain and repair.
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