threeleveladj.三级的
threenum.三n.三;三个adj.三个的
Three - dimensional terrain三维地形
three point near-bit reamer三点式近钻头扩眼器
three-electrode vacuum tube三级真空管
three well-defined horizons三个具限分明的土层
three phase seven wire system三相七线制
three hundred and eighty four(=384) 三百八十四
three dimensional model build三维建模
Three-dimensional vibration三维振动