The method was applied to analyze first tractor failure data.
并将该方法应用于拖拉机首次故障数据的分析。
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。
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。
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