旋转肌袖覆盖区解剖学上的新发现。
New anatomical findings regarding the footprint of the rotator cuff.
去年球季中，他因为肩膀的旋转肌撕裂伤而错失了两个月的先发，所以没有任何人可以确认哪一球或哪一局，对他来说是过度了。
Last year, he strained his shoulder midway through the season and missed nearly two months, so no one can be sure what pitch, or what inning, will be one too many.
步行带动腰椎向前弯曲并随左右下肢运动而旋转、侧弯，其主要作用力来自腰大肌。
Walking brought along the lumbar vertebra to bend forward and rotate with the movement of right and left lower limbs. The main force to finish this movement came mainly from musculus psoas major.
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