These systems mark the first step forward since the pre-1991 analog recording process (analog master to digital master).
这些系统标志着自1991年以前的模拟录音过程(模拟到数字掌握主踏出第一步)。
This paper focuses on how to make young athletes master the seven steps to master through pre-competition psychological training and repeated practice.
本文围绕如何使青少年运动员掌握七个步骤，搞好赛前的心理训练，反复练习，熟练掌握。
This paper focuses on how to make young athletes master the seven steps to master through pre-competition psychological training and repeated practice.
本文围绕如何使青少年运动员掌握七个步骤，搞好赛前的心理训练，反复练习，熟练掌握。
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