[閒聊] 球的縫線跟打者年有關嗎已回收
小弟今天在球場撿到界外球
就拿十年前在現場撿到的來相比
http://i.imgur.com/ghBEYJT.jpg
2006-2007職棒用球
http://i.imgur.com/77WRtbU.jpg
今年用球
兩顆的差別在於球的縫線
十年前的球 縫線比較粗
投手可能比較好控球
今年則比較細
投手控球相較難
想問棒球版的鄉民們
這會是造成投手不好投
打者比較出色的可能嗎
http://i.imgur.com/GF6eMf2.jpg
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