背鰭 的英文怎麼說

中文拼音 [bēiqí]
背鰭 英文
back fin
  • 背 : 背動詞1. （用脊背馱） carry on the back 2. （擔負） bear; shoulder
  • 鰭 : 名詞[書面語] （魚類的運動器官） fin
  1. The shark ' s dorsal fin was cut off by the fisherman

    鯊魚的背鰭被漁夫割了下來。
  2. And, its dorsal fin was no longer floppy

    此外，幼豚的背鰭亦已顯得堅挺。
  3. 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。
  4. Head about 1 / 5 of its total length ; body naked, with only one row of lateral line canal scales in both side

    頭長約為全長的1 5 ，骨化程度高。背鰭基寬，約為全長的1 4左右。
  5. Diagnostic characters for the recognition of species include the presence or absence of pectoral fin, the position of dorsal fin origin, gill opening, anus, nostril opening and eye, the cirri present or not, the dentition type, the body coloration, and the head pores or lateral line etc

    一般依據胸鰭的有無或發達程度，背鰭起點、鰓孔、肛門、鼻孔和眼等的相對位置，頜的發達程度和頜上是否具須，齒的形狀和排列方式，身體的斑紋，以及頭部和體側的側線孔數目等進行鑒別。
  6. Observed in perspective light, wide opaque zones and close translucent zones arrange alternately on sectioned otolith, sectioned dorsal fin spine and vertebra. the joints between the wide zones and close zones are the annulis. 2

    在透射光下觀察，耳石磨片、背鰭條磨片和脊椎骨上寬的暗帶與窄的亮帶相間排列，亮帶與外接暗帶的分界處為年輪。
  7. 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。
  8. 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。
  9. Check the nose part. it should be round around the nose and mouth part, not two " lines " starting from the upper and lower fins, connecting at the mouth like the blue diamond on the top photo. you can check the desired shape for the mouth - nose region on the turn based discus in the right photo

    檢查鼻子部分，鼻子和嘴的部分應該是圓的，不是兩條線從背鰭和腹鰭開始，連接于嘴的地方，就像上圖里藍鉆石的樣子。你可以從旁邊的圖中觀察到受歡迎的鼻子和嘴的部分。
  10. Since these theoretical analyses are based on inviscid potential flow theory, theoretical calculation and computational simulation may complement each other. the hydrodynamics and undulating propulsion of specimens were studied using three dimensional computational fluid dynamics ( cfd ) modeling. the cfd analysis using kinematic model of undulatory dorsal / median fin draws a series of conclusions, which include that the body drag increases significantly with the lateral body oscillation ; the body drag is minimum while the start point of

    計算結果表明游動過程中的形體阻力隨側向周期性擺動而增大;當背鰭前端位於身體側向最寬處時，形體阻力具有局部最小值，結論與實驗觀測結果相吻合;在實驗觀測的典型運動參數下，波動面的運動方程中的非對稱因素的出現使推進力增大約1 . 10倍。
  11. Association between type and type venom glandular cells of in dorsal fin spine of stonefish ( inimicus japonicus ) was studied by light microscopy and electro microscopy

    日本鬼背鰭棘毒腺中有兩種類型毒腺細胞? ?型細胞和型細胞。
  12. The shark ' s fin sliced the water

    鯊魚的背鰭像刀樣迅速劃破水面。
  13. Among the hundreds of guppy varieties, the best known feature of the male fish is its gorgeous dorsal and caudal fins

    在成千上百的孔雀魚品種中，雄魚最著名的特色就是它們華麗的背鰭和尾鰭。
  14. As i have shown with the pictures here ( going in reverse ), males slowly transform from a soft tan to a dark neon blue, with a gorgeous orange stripe on the dorsal fin

    請參考一下旁邊的圖片，雄性會從棕褐色慢慢的變成深藍色，同時背鰭上順延出一條金黃色的條紋。
  15. 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。
  16. As the assisting dolphins continued to encourage the baby to surface close to its mother we could see quite clearly its floppy dorsal fin - it takes some days for the fin to become strong enough to stand on its own

    在旁的海豚則不斷鼓勵小海豚冒出水面並靠近母豚，此時可清楚看見幼豚的背鰭仍然相當柔軟，小海豚的背鰭需要一段日子才可長得堅硬。
  17. 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。
  18. 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。
  19. 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。
  20. Individual pink dolphins can be identified from the unique colour, shape and scarring on their dorsal fins and wwf have been using this identification technique to establish a catalogue of whos who in the hong kong pink dolphin world

    憑照片中海豚背鰭上獨有的顏色型狀及疤痕可辨認個別白海豚，世界自然基金會一直沿用此辨認技術辨識個別白海豚及替白海豚成立了誰是誰辨識目錄。
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