Three role三种角色
threenum.三n.三;三个adj.三个的
three-signal fifth-order mix三信号五阶混合
Three-phase frequency inverter三相变频器
three phases alternating current三相交流电
Three incentives and one subsidy三奖一补
three - dimensional adjustment三维平差
three-dimensional woven fabric三维机织物
three-phase adaptive reclosure三相自适应重合闸
three-section extension ladder三节梯