英语词典
So if we want the train to be safe, it is necessary to ensure the thumb head tail hook and round brake beam stanchion dowels are in good condition.
因此,对列车钩尾扁销和制动梁支柱圆销故障检查是保证列车行车安全的必要条件。
互联网摘选
The improvement of the hook includes that the tail end of the hook is connected with a perforation ball body and the hook can rotate in360 degrees taking the axis of the ball body as the shaft;
挂钩的改良为,在挂钩的尾端连接一个穿孔球体,挂钩可以以球体中轴线为轴360度转动;
its shape has a little to be like a pigeon, but the neck is shorter, sharp- tongued hook song, tail feather curl.
它的外形有点像鸽子,但颈部较短,嘴尖钩曲,尾羽卷曲。
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