n. 多速电动机的极数转接
[网络] 变极;极变换

By Parke Brewer The women's pole vault provided one of the stirring dramas of the 2004 Olympic track and field competition. Until the mid 1990s, women's pole vault was not taken very seriously, mainly

发表于:2018-12-12 / 阅读(49) / 评论(0) 分类 VOA2004(下)--雅典奥运