SOAN

SOAN

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• 网络SPARC Open Access Newsletter; 索安文化; 旋

例句

As the relatively low strength of loess, large soan loess tunnel with large deformation after the excavation.

由于大跨度黄土隧道开挖扰动后变形较大，加之形状扁坦，故其建设难度不言而喻。