划幅小―果划程比所需要的短，就会过多地引起肌肉紧缩，因而使肌纤维膜过度紧张和疼痛。
Lack of Stroke Length- strokes that are shorter than what is required cause too many contractions and therefore excessive muscle fatigue and pain.
划幅小―果划程比所需要的短，就会过多地引起肌肉紧缩，因而使肌纤维膜过度紧张和疼痛。
Lack of Stroke Length- strokes that are shorter than what is required cause too many contractions and therefore excessive muscle fatigue and pain.
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