ground motion的用法和样例：
例句
- Everything in the universe is in constant motion.
宇宙中的万物都在不断地运动。 - The effects of sediment on the hydrodynamic pressures acting on rigid dams during vertical ground motion were studied By use of an explicit finite element scheme in this paper.
作者应用时域显式有限元模型分析了可压缩库水条件下淤积泥砂对垂直地运动作用时刚性坝面上动压力的影响。
