铁栓 meaning in Chinese

iron bolt

There , suspended by one hand between the baggage - car and the tender , with the other he loosened the safety chains ; but , owing to the traction , he would never have succeeded in unscrewing the yoking - bar , had not a violent concussion jolted this bar out . the train , now detached from the engine , remained a little behind , whilst the locomotive rushed forward with increased speed
现在，他一只手攀着车，整个身体悬空在行李车和煤车之间，另外一只手去松开挂钩链条，但是，由于机车的牵引力很大，如果单靠他的力量，挂钩中间的铁栓一辈子也拔不开，就在这时候，只见机车一阵摇晃，铁栓被震动得跳出来了。