brake pipe nipple

例句：

1. 1. The brake pipe is essential for maintaining the smooth operation of the vehicle's braking system.
   制动管对于保持车辆制动系统的平稳运行至关重要。
2. 2. The brake pipe was damaged during the accident, which caused a significant delay in the traffic flow.
   事故中制动管受损，导致交通流量显著延迟。
3. 3. The brake pipe was replaced as part of the vehicle maintenance check.
   作为车辆维护检查的一部分，更换了制动管。