当朴泰桓手触游泳池壁时，菲尔普斯已经在抬头查看上方的计时版了。
The South Korean touched the wall while Phelps was already looking at the overhead scoreboard.
游泳比赛要求有先进的计时设备，确保运动员排名和比赛成绩能够被精确地记录下来。
Swimming RACES require advanced timing devices to ensure the correct placing is given to the athlete and so that records can be accurately verified.
装置 （RFID）还可以决定游泳比赛的名次和计时。
RFID transponders will also have a role in determining placing and timing in swimming events.
游泳选手是唯一不需要通过终点线的速度比赛选手，取而代之的是安装在泳道末端的电动计时触板，它将精确地记录下选手们每次游到终点的时间。
Swimmers are the only racing competitors who don't cross a finish line. Instead they have electronic touch boards at the end of each pool lane that will accurately record the end of each length.
游泳选手是唯一不需要通过终点线的速度比赛选手，取而代之的是安装在泳道末端的电动计时触板，它将精确地记录下选手们每次游到终点的时间。
Swimmers are the only racing competitors who don't cross a finish line. Instead they have electronic touch boards at the end of each pool lane that will accurately record the end of each length.
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