three beam三射束
threenum.三n.三;三个adj.三个的
three-cavity amplifier tube三腔放大管
three-line array CCD camera三线阵CCD相机
three-dimensional screening三维筛选
three phase six state control三相六状态控制
three-dimensional prototype三维造型
three - phase fluidized bed三相流化床
Three Gorges cascade stations三峡梯级