By using the methods of documentary, experimental research and mathematical statistics, the supplementary apparatus was designed for acrobatics front handspring.
采用文献资料、实验研究、数理统计等方法，研究设计技巧前手翻辅助练习器。
By using the method of documentary researches and interviews, the author conducted an investigation of the present situation in the research of sports testing instruments in China.
采用文献资料检索、访谈等方法，对我国体育测试仪器研究现状进行了调查。
By using the method of documentary, mathematical statistics, comparative research, this paper makes comprehensive analysis on changing of marking rule for man gymnastics in 2001 ~ 2008.
采用文献资料调研、数理统计、比较研究等方法，对2001—2008年国际男子体操评分规则的变化进行了全面的分析。
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