Those researches centered on the explosion seismic effect caused by the excavating blast and the criterions of safety vibration velocity for different concrete structures.
以往的研究主要集中在爆破施工产生的地震效应方面，并制定了各种情况下混凝土结构的安全振动速度。
The optimal output distribution, the optimal output structure and the optimal and the optimal step structure can derive from this optimal outcome by statistic according to different criterions.
优化后基于不同层次的优化结果进行统计即可得到最优的产量分配、最优的产量构成和最优的措施结构，而且相互之间一一对应。
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