non-tariff barrier
沙坝
barrier【海洋】;sand bar【海洋】
暂无补充释义。
barrier【海洋】;sand bar【海洋】
暂无补充释义。
non-tariff barrier
blood-seminiferous tubule barrier, blood-testis barrier
fire barrier
barrier
without potential-jump barrier, surface barrier
biological barrier, biotic barrier
blood-brain barrier, BBB
placental barrier, placental membrane; 又称“胎盘膜”。