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Damping material being used on aircraft structure is a new thesis.
阻尼材料在飞机结构上的应用是一个新课题。
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Manufacturers used the material in the construction of a large number of aircraft.
飞机制造商使用的材料数量在一个大型建筑的。
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Manufacturers used the material in the construction of a large number of aircraft.
飞机制造商使用的材料数量在一个大型建筑的。
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