撞机

(of an airplane) to collide (with another plane midair) / to crash

to knock against / to bump into / to run into / to meet by accident

(bound form) machine; mechanism / (bound form) aircraft / (bound form) an opportunity / (bound form) crucial point; pivot / (bound form) quick-witted; flexible / (bound form) organic

a particle collider

Large Hadron Collider (LHC) at CERN, Geneva, Switzerland