threemanadj.三人共同管理的
threenum.三n.三;三个adj.三个的
three party service三方通话业务
three-second rule三秒规则
three-course meal三道菜的一餐
three calligraphies三笔字
three-phase cable三相电缆
Three-axis gimbal三轴跟踪架
Three-piece bogie三大件转向架
three-phase fault三相故障
three-strikes law严惩惯犯法律
three point problem三点问题,三标两角定位法