臀鰭 的英文怎麼說

中文拼音 [túnqí]
臀鰭 英文
anal fin
  • 臀 : 名詞（人體的一部分） buttocks
  • 鰭 : 名詞[書面語] （魚類的運動器官） fin
  1. 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。
  2. The measurements used are fork length, head length, upper jaw length, snout length, length of dorsal fin base and anal fin base and the distances from the tip of snout to insertion of dorsal fin, to pectoral fin, to ventral fin and to hard margin of preopercle

    此所用於分析之外部非體節形質計有：尾叉長、頭長、上顎長、吻長、眼徑、背鰭基底長、臀鰭基底長以及吻端到前鰓蓋骨后綠、背鰭起點、腹鰭起點、臀鰭起點等11個形質。
  3. First, an experimental apparatus for undulatory dorsal / median fin propulsion modes is established. based on morphological and kinematic data of the body and the dorsal / median fins of specimens, the analysis shows that the slender body is well streamlined, symmetrical

    本文的實驗觀測首先建立了背鰭/背臀鰭波動推進研究的生物實驗裝置，進行仿生對象形態學和運動學觀測，提取了仿生對象的形態學和運動學特徵。
  4. The approaches used in the study included : observing the microstructure and ultrastructure of the cell line of colossoma brachypomum ( cbt ) and the cell line of carp ( cp ) stressed low temperatures under fluoroscopy and tem ; analysis of dna damage in the cultured cells under temperatures stress by dna gel electrophoresis

    本研究採用的主要實驗方法：通過熒光顯微觀察、電鏡超微結構觀察確定cbt （淡水白鯧臀鰭細胞）和cp （草魚胚胎細胞）在低溫處理后的顯微與超微結構的變化。應用dna電泳分析細胞dna在低溫處理后的斷裂現象。
  5. Typical estimation of kinematic parameters ( cruising speed, wave speed, wave length and frequency ) based on experimental data of the cruising specimens indicates there is significant correlation between cruising speed and other parameters

    在實驗觀測的基礎上，根據實驗樣本的形態及運動規律，建立了背鰭/背臀鰭波動推進模式的運動學方程。
  6. The unsymmetrical phenomenon of the wave form of dorsal fin undulation is discussed and a description is given on basis of parameterized formulation

    分析了「鴛鴦炮彈」背臀鰭的相位關系，揭示了其穩態巡遊時背臀鰭波動相位隨時間變化的一致性和協同性。
  7. 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。
  8. Finally, the values of kinematic parameters in typical swimming are estimated for theoretical calculation and computational simulation. based on the kinematic formulation, this paper applies large - amplitude elongated body theory to propulsive performance of undulatory dorsal / median fins and establishes a set of equations for estimation of the propulsive force and the propeller efficiency. the calculations based on experimental data coincide with blake ’ s result in 1980

    從波動運動的參數方程出發，本文基於大擺幅伸長體理論對背鰭/背臀鰭波動模式的推進性能進行了分析，推導推進力和推進效率的計算公式，利用實驗觀測典型運動參數對仿生對象的推進力和推進效率進行了理論估算，結果與blake的計算結果相吻合，從而驗證了所建運動學模型的有效性。
  9. Based on bionic experiments in gymnarchus niloticus and rhinecantbus aculeatus, this paper presents a parameterized description of undulatory dorsal / median fin propulsion modes. by referring to large - amplitude elongated body theory and computational fluid dynamics simulation, this paper also provides an explanation of the external morphological and kinematic phenomena that are closely related to propulsion characteristics

    本文以「尼羅河魔鬼」和「鴛鴦炮彈」為仿生實驗對象，建立背鰭/背臀鰭波動推進模式的參數化描述，對與推進性能密切相關的若干形態學及運動學特徵進行研究。
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