臀鱗 的英文怎麼說
中文拼音 [túnlīn]
臀鱗
英文
anal scale-
The interpretability of four kinds of ageing materials are as follows : sectioned dorsal fin spine > sectioned lapillus > scale > vertebra. sectioned dorsal fin spine is the best material in ageing of the fish less than eight years. as for the fish elder than eight years sectioned lapillus is the reliable ageing material that had more annulus readings than scale, dorsal fine spine and vertebra
對8齡以下個體,用背鰭條磨片鑒定年齡效果最佳;對8齡以上個體,臀鱗、背鰭條磨片和脊椎骨上的年輪計數明顯低於微耳石磨片,微耳石磨片上的年輪計數最高,是高齡青海湖裸鯉可靠的年齡鑒定材料。The main results are as follows : 1. there are two patterns of annuli characteristics on anal scale
青海湖裸鯉臀鱗上的環紋特徵分「疏密型」和「非疏密型」兩種。The undulatory dorsal / median fin propulsion modes as represented by amiiform and balistiform fish are of great significance for bionic propulsion research, particularly for the design and control of underwater vehicles, which are generally employed at slow speeds, offering greater maneuverability and better propulsive efficiency
以弓鰭目和鱗?科魚類為代表的背鰭/背臀鰭波動推進模式對於水下仿生推進器研製具有相當重要的參考價值。
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