2006年11月30日，随着最后一钩肩部次结构吊装就位，倍受关注的2008年北京奥运会主会场——国家体育场工程中最关键的项目——钢结构吊装工作全部完成，此举标志着国家体育场主体结构工程施工全部完成。

Bird's Nest main structures completed

With the finishing of the hoisting project, the main structures of the National Stadium for the 2008 Olympic Games have all completed.

The key steps of the construction of the main stadium, also called "the Bird's Nest," are shifting to the installation of its membranes, fit-ups and decorations, installation of electromechanical equipment and the exterior engineering project.

The hoisting project, crucial in the stadium's construction, was arranged into two phases. The main structures' hoisting project started on October 28, 2005 and ended on August 31, 2006. The sub-structures' hoisting was conducted between September 17 and November 30, 2006.

The Bird's Nest underwent two other major steps this year. On August 31 the welding process was completed on its main steel structures and on September 17, its supportive structures were successfully removed. The engineering and technical staff as well as the workers overcame many difficulties in the construction process.


Vocabulary :

membranes: 膜（结构），隔膜

fit-ups and decorations：装饰装修

exterior：外部的，外在的

welding：定位焊接

（Agencies）


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