Theoretical studies and earthquake damage have shown that effects of the rotational components of seismic ground motions on some engineering structures are important.
理论分析和震害经验表明，地震动的转动分量对某些工程结构的影响是重要的。
In this paper, a convergent scheme of partitioning the wind field into divergent and rotational components over a limited domain is introduced and compared with some methods in current use.
介绍一种具有“收敛”特性的有限区域旋转风与辐散风分解方案，并与目前常用的一些差分方案进行了比较。
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