rail-mounted crane

例句：

1. 1.The railway crane was used to lift heavy loads onto the train.
   铁路起重机被用来将重物放到火车上。
2. 2.The railway crane is essential for moving heavy materials over long distances.
   铁路起重机对于在长距离内搬运重材料至关重要。
3. 3.The railway crane is equipped with advanced technology that improves efficiency and safety.
   铁路起重机配备了先进的技术，提高了效率和安全性。