Selected more than two hundred college students for pretest, used factor analysis processing the data, and got 38 items.
选取两百多名大学生进行试测，对所得数据进行探索性因素分析，得到38个题项。
Tension measurements in the pretest phase are a necessary step in biomechanical analysis.
预拉伸实验对于巩膜的拉伸实验研究是非常必要的。
Tension measurements in the pretest phase are a necessary step in biomechanical analysis.
预拉伸实验对于巩膜的拉伸实验研究是非常必要的。
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