本条数据采用的设备为普通照相机，观察对象为多个废旧电机轴，材料均为45钢，通过对其表面进行拍照，确定电机轴的形状和尺寸，并对表面损伤所在部位和损伤形式进行初步判断，以便对其进行切割进行进一步的观测。

The equipment used in this article is an ordinary camera, and the observation objects are a number of waste motor shafts, all of which are made of 45 steel. By taking pictures of their surfaces, the shape and size of the motor shafts are determined, and the location and form of surface damage are preliminically judged, so as to cut them for further observation.