relay gear

例句：

1. 1. The team used relay gear to quickly transmit information across the city.
   该团队使用了接力设备，迅速将信息从城市的一个点传到另一个点。
2. 2.The relay gear was designed to ensure smooth communication between different parts of the system.
   接力设备的设计旨在确保系统不同部分之间的顺畅通信。
3. 3.During the race, the athletes used relay gear to transfer their energy and power from one athlete to another.
   在比赛中，运动员们使用接力设备将他们的精力和力量从一个运动员传递给另一个运动员。