计时裁判需要训练和经验，一个是看起点发令枪的硝烟开表，另一个是终点根据运动员的跑速判断“提前量”停表

来源: coach1960 于 2023-01-29 06:32:29 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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