preferentialist关税特惠主义者preferentialadj.优先的；优待的；特惠的preferential tariff rates.优惠关税税率preferential species of tree适生树种preferential rules of origin优惠原产地Preferential Departure Route优先使用的起飞航线preferential income treatment收入倾斜Preferential greedy algorithm优先贪婪算法preferential numerical series优先数系preferential interest deposit优利存款preferential rate of exchange[经] 优惠汇率preferential export financing出口优惠融资

preferential shopn.工会会员可享特惠优待之商店