通过调查飞机挂弹架次比例，发现情况变化随意性很强，基本无统计规律可循，因而按每架次实际起飞外挂重量计算疲劳损伤显得尤为必要。
The investigation shows that actual take-off suspension weights chang considerably and irregularly, so it is important to calculate fatigue damage based on actual suspension weights for each flight.
通过调查飞机挂弹架次比例，发现情况变化随意性很强，基本无统计规律可循，因而按每架次实际起飞外挂重量计算疲劳损伤显得尤为必要。
The investigation shows that actual take-off suspension weights chang considerably and irregularly, so it is important to calculate fatigue damage based on actual suspension weights for each flight.
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