In order to explore the speed skaters' characteristics of physique structure and function, this paper USES color Doppler Blood Stream Picture Instrument to inspect left ventricle of 21 speed skaters.
为了探究速度滑冰运动员形态结构与功能特征，利用彩色多普勒血流显像仪对21名速滑运动员的左心室进行检查。
In order to explore the speed skaters' characteristics of physique structure and function, this paper USES color Doppler Blood Stream Picture Instrument to inspect left ventricle of 21 speed skaters.
为了探究速度滑冰运动员形态结构与功能特征，利用彩色多普勒血流显像仪对21名速滑运动员的左心室进行检查。
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