The traditional normal method for charging up storage battery is the constant voltage or constant current charge. In the charging process 10 to 20 hours are used.
传统的常规蓄电池充电方法都采用小电流的恒压或恒流充电，充电时间长达10 ~ 20个小时。
According to bibliography, this paper has analyzed the current curriculum of the students who are free of charge in Physical Education College of Shaanxi Normal University.
采用文献资料等方法，对陕西师范大学体育教育专业免费师范生的课程现状进行研究。
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