preferentialadj.优先的;优待的;特惠的
preferential clause特惠条款
preferential repair优先修复
preferential debtor[法] 优先债务人
preferential choice优选
preferential ballotn.选择选举制的选票
preferential tariff特惠税率,关税特惠
preferential hiring[经] 优先雇用
preferential margin优惠差幅
preferential prices优惠价格
preferential attack择优侵蚀