以预应力三阶段设计为例分析预应力施加对柱支承扁网壳静力性能的影响。
The effect of practical prestressing on the static specialties of a kind of column-supported lattice shallow spherical shells is studied through the example of three-phase prestressing design.
分析证实Taepodong 2的设计不正确，并且到目前为止没有成功进入第三阶段——能击中美国的一个重要性飞跃。
Analysts believe the Taepodong 2 is inaccurate and so far has failed to reach a third stage, a critical leap to be able to hit the United States.
第三阶段工作的重点在于进行迭代测试与设计修正的工作。
The major tasks of the third stage so to test and modify the prototype iteratively .
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