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 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。
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