Elzo埃尔索ELabbr.高度（=elevation）eleetrogas vertical position welding词气电立焊Elaeagnus angustifolia polysaccharide沙枣多糖ELT pedagogical innovation and change大学英语教学改革eleetric- environmental instruction机电产品elastoplastic time-history analysis弹塑性时程分析elastohydrodynamic lubrication theory弹性流体动力润滑理论Elsholtzia penduliflora W.W.Smith垂花香薷eleetromyographic biofeedback therapy肌电生物反馈eleetrical voltage measurement system电力电压测量elastomeric flex compression coupling弹性压缩联轴器