Researchers can precisely measure previously unquantifiable aspects of pitching—everything from the angular velocity of the arm at the shoulder joint to tension on the knees and elbows.
研究者可以精确地测量出先前无法量化
各种有关投球
面数据——从肩关节部位手臂移动角度速度，到膝盖和手肘
。
,难以计算,难以估量,无法量化Researchers can precisely measure previously unquantifiable aspects of pitching—everything from the angular velocity of the arm at the shoulder joint to tension on the knees and elbows.
研究者可以精确地测量出先前无法量化各种有关投球面数据——从肩关节部位手臂移动角度速度，到膝盖和手肘。
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