The torsion effect is an important factor to cause the seismic damage of structures, so it has always being an important problem in seismic research area all through.
扭转效应是引起建筑物地震破坏的重要因素之一，因而扭转问题一直是结构抗震领域研究的重要课题。
In this paper, the writers consult a lot of data concerned, sum up the damage effect on the municipal pipes by earthquakes and propose some seismic measures to protect the municipal pipes.
通过查阅大量的相关资料，总结了地震对市政管道产生的破坏，并提出了市政管道应采取的抗震措施。
It can be used to study blast seismic effect to control and forecast blast vibration damage.
该方法可用于研究爆破地震效应特别是爆破震动危害控制和预测。
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