;internally, the major structural elements of the fin are an upturned urostyle that articulates with flattened bones that support the principial fin rays.
部，鳍
主要结构要素是支撑基本鳍条平坦硬骨，连接一个朝上尾杆骨。
;原始;internally, the major structural elements of the fin are an upturned urostyle that articulates with flattened bones that support the principial fin rays.
部，鳍主要结构要素是支撑基本鳍条平坦硬骨，连接一个朝上尾杆骨。
声明：以上例句、词性分类均由互联网资源自动生成，部分未
工审核，其表达
容亦不代表本软件观点；若发现问题，欢迎向我们指正。
