铁路机车车辆 - 2026 进行中

科目: 铁路机车车辆
级别: V
类别: 大学生
测试题目: 英语
问题示例: Which description correctly defines a railway wheelset? Two wheels rigidly mounted on a common axle, Two independent wheels connected by a brake pipe, A pair of bogies joined by a bolster, A wheel and its suspension spring