短語(yǔ)詞組短語(yǔ)head -on n collision 對(duì)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(duì)碰electron -positron head-on collision machine 正負(fù)電子對(duì)撞機(jī) 返回 head-on collision