During the construction of double-arched tunnel, the role of centerpillar is of great importance.
在连拱隧道施工中，中隔墙扮演着至关重要的角色。
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Inspired by the vines grow freely along the branches, cut the metal block into geometric plate, metal plate can freely change shape along the centerpillar, form a unique metal plant design.
Thanks to Paul Pillar, director of graduate studies at Georgetown University's Center for Peace and Security Studies and a former CIA intelligence officer.