反复撞击 meaning in English
beat ＝ hit many times
Examples
- The elephant foot bulging deformation develops with the increasing stress of the rigid wall , which is caused by the uplift of the tank bottom and the impaction between the tank bottom and the foundation
因罐底提离导致的罐底与基础反复撞击加大了作用在罐壁上的应力，使罐壁底部“象足”变形不断发展，最终导致罐壁撕裂。