self energizing effort

Study on the GOM of relaxation of autofrettaged residual stresses;

自增强残余应力松弛的灰色优化模型研究

At the middle school and high school history curriculum standard further show out the special value of the history disciplines, and emphasis that the unique value of the history discipline lies in promoting the national self-confidence, this also is the eternal topic in middle school history education.

新的初、高中历史课程标准进一步凸显了历史学科的独特价值,并且强调历史学科的独特价值就在于增进国民自信力,这也是中学历史教育的永恒话题。