1. Any of several whales of the family Balaenidae, characterized by a large head, whalebone plates in the mouth, and absence of a dorsal fin.
露脊鲸:露脊鲸科中的几种鲸,特征为头部硕大、嘴边长有鲸须而无背鳍。

来自互联网

2. Any of several whales of the family Balaenidae, characterized by a large head, whalebone plates in the mouth, and absence of a dorsal fin.
露脊鲸:露脊鲸科中的几种鲸,特征为头部硕大、嘴边长有鲸须而无背鳍。

来自互联网