短语词组短語naval port pollution control 軍港汙染防治naval port hygiene 軍港碼頭衛生Naval Port of Karlskrona 卡爾斯尅魯納軍港channel of naval port 軍港航道naval port engineering 軍港工程naval port dredge 軍港疏濬wharf deratization in naval port 軍港碼頭滅鼠 返回 naval port