three peak装饰用手帕山字形插法threenum.三n.三；三个adj.三个的three-input amplitude adder三输入端振幅加法器three-dimensional framework三维骨架three lobe epitrochoidal bore三弧外旋轮线缸体Three times three make nine.三乘三得九。Three-step projection method三步投影方法three-phase electric machine三相电机three hundred and ninety three(=393) 三百九十三three-dimensional foundation三维基础three-dimensional pipe truss立体管桁架Three Roads to Quantum Gravity量子重力