您用过手卡表么?那个只有0。1秒的档,读不出0。01秒来。
所有跟帖:
• 内行,开表要看发令枪的硝烟起,停表要有提前量(根据运动员的跑速) -coach1960- ♂ (0 bytes) () 12/11/2017 postreply 09:07:58
• 内行,开表要看发令枪的硝烟起,停表要有提前量(根据运动员的跑速) -coach1960- ♂ (0 bytes) () 12/11/2017 postreply 09:07:58
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