Warehouses lie abandoned, their corrugated shells covered in rust.
仓库被废弃，皱巴巴的外壳布满铁锈。
The elastic characteristics of corrugated shells are obtained by using the perturbation and power series method.
采用摄动法和幂级数方法，得到了波纹壳的弹性特征。
The elastic characteristics of corrugated shells are obtained by using the perturbation and power series method.
采用摄动法和幂级数方法，得到了波纹壳的弹性特征。
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