heavy - haul wagon

• 重载货车

heavy - haul wagon的用法和样例：

例句

1. The key technology of the brake locking and release for heavy haul freight cars applied by the retarder has been realized under low pressure transmission.
   解决在低压传动条件下，实现减速器对重载货车的制动锁闭和缓解解锁的关键技术。