three R rs读、写、算三种技能
threenum.三n.三;三个adj.三个的
three thousand five hundred and sixty(=3560) 三千五百六十
three-level space vector modulation三电平空间矢量调制
three thousand one hundred and twelve(=3112) 三千一百一十二
three -point boundary value problem三点边值问题
three--five-year-old children3-5岁幼儿
three thousand eight hundred and five(=3805) 三千八百零五
three-dimensional discrete elements三维离散元
three-dimensional calculation model三维计算模型