The control of deformation is the key to the installation of long - span steel shell structure for National Grand Theatre.

控制变形，是国家大剧院大跨度壳体钢结构安装的关键。

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The control of deformation is the key to the installation of long - span steel shell structure for National Grand Theatre.

控制变形，是国家大剧院大跨度壳体钢结构安装的关键。

youdao