Here's one of the beautiful, stylized wheels on the Case traction engine.

这里是美丽的，在风格轮为例牵引引擎之一。

Pictured is a 1917 Case traction engine, which was the world's first tractor model.

图为1917年为例牵引引擎，这是世界上第一个拖拉机模型。

The group bought the traction engine from a museum in Yuma, Ariz., that closed down.

该小组在尤马购买了一，亚利桑那州，即关闭了博物馆的牵引机。

The experiment technology and equipment of ac drive system are the important method of the study, development and speciality teaching of ac traction engine.

交流传动系统实验技术和设备是交流传动机车研究、开发及专业教学的重要手段。

The quality of aluminum_plastic composite tube is affected by plastic extrude machine, mode, welding machine of TIG AC/DC, traction engine etc. and also affected by raw material.

铝塑复合管产品质量直接受塑料挤出机、模具、交流脉冲氩孤焊机、牵引机等设备的机械性能及原材料质量的影响。