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。
This paper presents in brief the function, the structure and some characteristics of the package.
本文就该软件的功能、结构及特点作了简短的介绍。
This paper analyzes the function characteristics and structure of the distributed real-time database, data object and transaction's type in industry monitor&control system.
分析了工业监控系统中的分布式实时数据库的的功能与特点、结构、数据对象和事务的种类。
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