“rail butt”的概念、定义、翻译、参考文献-科学参考

单词	rail butt
释义	rail butt 钢轨切头
随便看	push money push moraine push moth push-mover push net pushoff push-off push-off arm push-off buck rake push-off moulding machine push-off pin push-off stack push on push-on starter push on the control wheel push operation push-out push-out case push-out chuck push-out collet push-out (collet) chuck push out test pushover push over pushover bar

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