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。
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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