up-down error

例句：

1. 1.The engineer used a laser to measure the distance between two points on the wall.
   工程师使用激光测量墙上两点之间的距离。
2. 2. The car's suspension system was designed to minimize up-and-down errors in ride height.
   汽车悬挂系统的设计旨在最小化乘坐高度的上下误差。
3. 3. The scientist conducted experiments to determine the accuracy of their up-and-down error measurement method.
   科学家进行了实验以确定他们垂直误差测量方法的准确性。