tertiary era第三纪tertiaryadj.第三的；第三位的；第三世纪的；高等教育的n.臂翼；第三重音；第三会员tertiary float feed三次浮选给料tertiary circulation三级环流tertiary VET college高职院校tertiary institution高等学校tertiary collaterals孙络tertiary obstruction第三障碍Tertiary. industry第三产业tertiary articulator第三发音器官tertiary publication三次文献tertiary beneficiary第三受益人