base percussion

• 基本碰撞

base percussion的用法和样例：

例句

1. As a rift basin, Bohai Bay developed on an erosional base of collision margin between Lower Yangtze and North China Plates.
   渤海湾盆地是在下扬子板块与华北板块碰撞边缘侵蚀基底上发育起来的裂谷盆地。