seamark海上: at sea; on the sea; seaborne航路标志: route markings海上航路: sea lane航路；海上航线。: sea lane航路标志: airway marking; navigation mark; route marking; waterway marks下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:海上航路标志，即可在微信中查询翻译
