短語詞組短語head -on n collision 對正碰撞eccentric head -on collision 偏心正碰撞a head -on collision 正麪沖突;正麪相撞Got a head -on collision 有碰到正麪沖擊two head -on collision detonation waves 爆轟波對碰electron -positron head-on collision machine 正負電子對撞機 返回 head-on collision