customser[法] 主顾, 顾客, 用户Customsn.海关customs franchise关税豁免customs districts风俗区customs declarers报关员customs authority海关customs gold unit关金, 缴纳关税用的金单位customs logistics海关物流customs clearance出口结关； 清关customs exemption关税豁免customs duty rate[经] 关税税率customs formality报关手续