1、 The primary resonance bifurcation problems are discussed for an arch structure with parametric and forced excitation.
摘要研究拱型结构在参数激励与强迫激励联合作用下的主共振情形的分叉问题。
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2、 In most cases,the plaque located at the bifurcation of the carotid artery.
颈动脉粥样斑块好发于分叉处，在各型斑块中软斑与溃疡斑是脑梗塞的主要栓子来源之一。
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