non-tariff barrier
沙洲链
barrier chain【地质】
暂无补充释义。
相关词条
non-tarrif barrier
without potential-jump barrier, surface barrier
physiographic barrier
biological barrier, biotic barrier
placental barrier, placental membrane; 又称“胎盘膜”。
barrier
barrier contraceptive (contraceptive ) contraceptive (contraceptive )