tributaryadj.纳贡的；从属的；辅助的；支流的n.支流；纳贡者；属国tributary stream支流tributary system朝贡体制tributary valley支流河谷,支劣谷tributary inflow支流流入水量tributary course支流tributary office汇集局, 分局tributary channel分通道tributary circuit吊牌电路tributary glacier支冰川tributary station附设局