With increase of the service life, the carrying ability of the bridge degenerates gradually.
桥梁随着使用年数的增加，其性能逐渐退化。
So it is very important whether the airframe and tie-down equipment have high carrying ability.
这样，机体结构及系留索具是否有足够的承载能力，就显得异常重要。
Carrying capacity is strong, climbing ability, simple operation, easy maintenance.
运载能力强，爬坡能力大，操作简单，维修保养容易。
Carrying capacity is strong, climbing ability, simple operation, easy maintenance.
运载能力强，爬坡能力大，操作简单，维修保养容易。
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