headgut前肠
headn.头部;头脑;顶端;领袖;硬币的正面v.前进;为首;朝向adj.首要的;前面的
head-on collision正碰,迎面碰撞,直接碰撞
head and tail shape轧件头尾形状
head aperture ratio开口率
head-wind landing逆风降落
head space response液面上响应
head-water tunnel进水隧洞
head file and macro头文件和宏
head-on impaction垂直阻生
head hang mechanism磁头悬挂机构
head for extinction趋向灭亡