The Brush Type 4, later becoming Class 47 under TOPS, has been involved in its fair share of collisions and derailments over the years, largely due to the size of the fleet and its operational sphere. Some fared better than others and the vast majority that did receive damage were repaired at Crewe Works and returned to service. However, there were four that were so badly damaged early on in their careers that withdrawal was the only option.
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机译：几年来，Brush Type 4（后来成为TOPS的Class 47）一直参与其相当数量的碰撞和出轨，这主要是由于机队规模及其运营范围所致。一些情况比其他情况要好，并且确实受到损坏的绝大多数在Crewe Works维修并重新投入使用。但是，有四个人在其职业生涯的早期遭受了如此严重的损害，以至于退出是唯一的选择。
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