rail flaw detecting car

例句：

1. 1. Therail flaw detecting car is usedto inspect the railway tracks for any defects.
   检测轨道缺陷的车辆用于检查铁路轨道是否有任何缺陷。
2. 2. The engineers use thisdevice to detect any potential rail flawsbefore they cause accidents.
   工程师们使用这个装置来在发生事故之前检测任何潜在的轨道缺陷。
3. 3. The train was equipped with arail flaw detecting car that helpedto prevent accidents caused by faulty rails.
   这列火车配备了一个检测轨道缺陷的车辆，有助于防止因轨道故障引起的事故。