brake-field tube

例句：

1. 1.The brake-field tube is used to control the speed of the vehicle.
   制动场管用于控制车辆的速度。
2. 2. The brake-field tube is a crucial component of the braking system.
   制动场管是制动系统的关键组成部分。
3. 3. The brake-field tube was designed to improve the efficiency of the braking system.
   制动场管的设计旨在提高制动系统的效率。