roundeln.圆形物roundadj.圆的；球形的；丰满的；完整的；整数的；不确切的；大量的；坦率的；严厉粗暴的adv.环绕地；周长；调转方向；依次；到某处prep.围绕；在另一侧；四处n.一局(轮)；常规活动；巡视；圆形物；(由一人给大家买的)一巡饮料；一整片面包；一阵(掌声)；一发(子弹)v.绕行；弄圆；使成为整数round search圆周搜索round shaker圆振动筛rounded wing圆翼(动)round turret圆形炮塔round comber圆形梳棉机round billet小圆材round trippern.棒球运动中的全垒打round-house扫击round feature圆角特征round belting圆带装置

1. A usually round pin that fits tightly into a corresponding hole to fasten or align two adjacent pieces.
   暗榫通常为一圆钉，紧扣在相应的眼里以固定或校正相似的两片