quadrupod
... quadruplyorthogonal四重正交 quadrupod四角架 quadrupole四倍 ...
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四角锥体网架 square pyramid space grids
四角形桁架 quadrangular truss
正放四角锥网架 rectangular square pyramid space truss
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北京电视中心综合业务楼主体结构施工时，四角的L形复合巨型柱采用液压爬架。
In the main structure construction of the complex building of Beijing Television project, hydraulic climb frame is used for the construction of L-shaped complex rectangle columns at the four corners.
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