three DOFs三自由度
threenum.三n.三;三个adj.三个的
three innovations edueation三创教育
three-phase symmetry load三相对称电源
three dimensional structure立体结构
three-ply steel moldboard三层钢犁壁
three dimensions of context三维语境
three-dimensional warfare三度空间战
three-arm combined beater三翼综合打手