step-up and down method

Theory and Method of Step-down-stress Accelerated Life Testing.

腐蚀累积损伤理论研究与飞机结构日历寿命分析.

Method Step down test and animal models of dysmnesia induced by scopolamine and NaNO 2 were used.

方法以东茛菪碱和亚硝酸钠造成小鼠记忆缺失模型，跳台法进行行为检测。

Major decomposition techniques include the Principal Component Analysis ( PCA), the eigenspace comparison method, the MTY method, the step-down method, and the multiway kernel PCA method.

主流分解技术包括了主成分分析（PCA），特征空间比较法，MTY方法、步降方法、多向核主成分分析方法。

Method Normal and repeated cerebral ischemia reperfusion model mice were used on step down test and step through test.

方法应用正常及反复脑缺血再灌注模型鼠，采用避暗试验和跳台试验进行行为检测。

Further, by keyword decomposition method, make the themes break down into: e-learning, interactive teaching, interactive strategy, step-by-step approach focusing combing the results of relevant research at home and abroad.

进而，按关键词分解法将主题分解成：在线学习、教学互动、互动策略，层层深入、步步聚焦的方式梳理国内外相关研究成果。