垂向运动 meaning in English

catenary motion
vertical motion

Pulsation dynamics of an underwater explosion bubble vertical migrating to a horizontal rigid plane
水平刚性面下方水下爆炸气泡垂向运动的理论研究
When the model running on the virtual road , it can show the vertical , lateral and pitching movement of the vehicle body and driver , and the rotation movement of the six wheels , these movements were controlled by model analysis data
汽车模型在虚拟道路试验场中行驶时，能够体现车厢(包括驾驶室)的垂向运动、横向运动和俯仰运动；驾驶员的垂向运动、横向运动和俯仰运动，六个轮胎的旋转运动。