semivibration

例句：

1. 1. The vibration of the ground caused by the earthquake was felt throughout the city.
   地震引起的地面震动在整个城市都能感觉到。
2. 2.The scientist conducted a series of experiments to study the effects of semi-oscillation on human health.
   科学家进行了一系列的实验来研究半振荡对人类健康的影响。
3. 3. The physicist used a semi-oscillating pendulum to measure the force of gravity.
   物理学家使用一个半振荡的摆杆来测量重力的大小。