http://www.baseballprospectus.com/article.php?articleid=28423
這篇文章解釋了在球探界中 "揮棒速度"被定義為棒子從啟動到接觸的時間
不過和可以用測速槍精確測量的球速不同
揮棒速度並沒辦法定量 只能靠球探的感覺來評估
感覺對了 就是揮棒速度快 感覺錯了 就是揮棒慢
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看來在打者的評估上 球探界還有很長一段路要走...
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※ 文章網址: https://www.ptt.cc/bbs/MLB/M.1455251016.A.B05.html
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