longadj.长的；冗长的；久的；长音的adv.长期地；久地；用于名词后强调某事发生在某整段时间v.渴望n.长时间；长音节；囤积商品者longleafn.长叶[松]

1. It is concluded that the long and flat shape of the interlayer decreases the first bend natural frequency.
   分析指出一阶整体纵向弯曲固有频率偏低是由夹层的扁平长结构导致。