Three As三个自动化
threenum.三n.三;三个adj.三个的
three-high mill三辊轧机,三辊式轧机
three-beam tube三束管,三注管
three hinged arch三铰拱
Three referees.三位。
three main stages三个主要阶段
three agriculture三农
three-shear ewe三岁母羊
three-tube pump三管泵
three start screw[机] 三头螺纹
three-way cross三源杂交