lightweightadj.轻量级的；无足轻重的；比较轻的n.轻量级拳击运动员；无足轻重的人或物；轻便lightweight frame SSH轻量级架构SSHlightweight motorcycle轻型摩托车lightweight Embankment轻质路堤lightweight structures轻型结构Lightweight Dbl Sculls轻量级双人双桨Lightweight steel roof轻钢屋盖lightweight mixed soil轻质混合土lightweight frameworks轻量级框架lightweight panel wall轻板隔墙lightweight refractory轻质耐火材料