three W'sn.特里
threenum.三n.三;三个adj.三个的
three-roll bending滚弯
three-chord bridge三弦桥
three-phase stator三相定子
three-quarter view四分之三侧视
three-word stories三言
three axes alignment三轴对准
three-pan gas oven三列式煤气加热烤炉
three kinds of power三股势力
three electric level三电平
three-mode control三模控制