threeleveladj.三级的threenum.三n.三；三个adj.三个的three-surface milling lathe三面铣组合机床three-component seismograph三分向地震仪three-dimension heat source三维热源three thousand and fifty four(=3054) 三千零五十四three hundred and sixty three(=363) 三百六十三three-dimensional manoeuvre立体机动three-dimension copy miller立体仿形铣床three-dimensional prestress三向预应力Three-Networks Amalgamation三网融合three styles of weightlifting三项举重