Pectoral fin length 胸鳍基底长
First dorsal fin length 第一背鳍长
Second dorsal fin length 第二背鳍长
Caudal fin length 尾鳍基底长
st dorsal fin length 第一背鳍长
nd dorsal fin length 第二背鳍长
pre-dorsal fin length 背鳍前长度
The results show that fin length and flow length have more obvious effect on the thermal hydraulic characteristics of offset strip fins.
结果表明，错齿翅片的节距和长度对其热工性能影响最为显著。
The results show that the j and f factors increase with the fin space and fin length decreasing, and the fin space has more obvious effect on the area of optimization factor.
试验结果表明，新型开窗翅片的翅片间距对表面传热因子和阻力性能影响较为显著。
This condition, called neoteny, means it keeps its tadpole-like dorsal fin, which runs almost the length of its body, and its feathery external gills, which protrude from the back of its wide head.
这种情况，叫做动态持续，意味着它保留着它的像蝌蚪一样的贯穿整个身体的背鳍，从头后面突出的像羽毛一样的外腮。
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