车底架承受的载荷通过上心盘传给下心盘,下心盘传给摇枕。
查看答案
为适应铁路车辆编组连挂,成列运行的特点,车与车之间需装设连接缓冲装置,但不需要所有车辆都设置制动装置。
A. 对
B. 错
铁路车辆通过特殊的轮轨结构实现导向,不需要设置方向盘。
A. 对
B. 错
When you become a mid-level secretary, you'll no longer be able to rely on superiors to make decisions for you.
With over 54,000 pieces of rental equipment available, our company is ready to support your new project.