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longboardn.冲浪板

1. As the decks of most long-span bridges are very flat, the aeroelastic effects of the decks must be taken into account when the buffeting is analyzed.
   许多大跨度桥梁的桥面是很薄的结构，在考虑抖振时必须同时考虑桥面的气动弹性效应。