northern slope 北坡（美國阿拉斯加州北冰洋之間）northern shoveler [生物學]琵嘴鴨northern scenery 北國風光northern right-whale dolphin northern qinghai-tibet plateau [辳業科學]藏北高原northern province northern premier league northern pike northern oriole northern nanny [地球科學]北雹風northern middle latitude [環境科學技術]北半球中緯度northern link northern line northern limit line northern lights northern light 北極光northern leopard frog northern league northern latitude n. [地理] 北緯northern karelia province