relay cycle timer

例句：

1. 1.The relay race was won by the team with the fastest relay cycle timer.
   接力赛中，拥有最快接力循环计时器的团队赢得了比赛。
2. 2. The coach used a relay cycle timer to keep track of the athletes' progress during the race.
   教练使用接力循环计时器来跟踪运动员在比赛中的进步。
3. 3.The relay cycle timer helped us to measure the distance covered by each athlete during the relay race.
   接力循环计时器帮助我们测量了每位运动员在接力赛中跑过的路程。