rail end chamfering

例句：

1. 1. The engineers designed the new train with a railend chamfer to improve efficiency.
   工程师们设计了新火车，带有轨道端倒角以提高效率。
2. 2. The construction of the bridgerequired careful planning to ensure that therail end chamfer was evenlydistributed.
   桥梁的建设需要仔细规划，以确保轨道端倒角均匀分布。
3. 3. The safety standardsfor railway equipment require that all components havea rail end chamfer to preventaccidents.
   铁路设备的安全标准要求所有部件都有轨道端倒角以防止事故。