对撞 duìzhuàng collide head-on Origin Definitions Defs Strokes Stroke Words Sentences Sents 对撞机 duìzhuàngjī collider a particle collider大型强子对撞机 Dàxíng Qiángzǐ Duìzhuàng Jī Large Hadron Collider Large Hadron Collider (LHC) at CERN, Geneva, Switzerland