尾尾結構 的英文怎麼說

中文拼音 [wěiwěijiēgòu]
尾尾結構 英文
tail-to-tail structure
  • : 結動詞(長出果實或種子) bear (fruit); form (seed)
  • : Ⅰ動詞1 (構造; 組合) construct; form; compose 2 (結成) fabricate; make up 3 (建造; 架屋) bui...
  • 結構 : 1 (各組成部分的搭配形式) structure; composition; construction; formation; constitution; fabric;...
  1. 3 the comparison of mitochondrial genomes and phylogentic relationships of amphibian there still is a lack of consensus regarding living amphibian phylogenetic relationships. the most widely accepted hypothesis, based on morphological data, supports the monophyletic origin in the late paleozoic ( 300 mya ) of the three living orders in the class amphibia and a sister - group relationship between caudata and anura ( the batrachia hypothesis ) to the exclusion of the gymnophiona

    3兩棲類動物的線粒體基因組比較和系統發生關系現存兩棲類的三個目的系統發生關系仍然沒有統一意見,最廣泛被接受的假說,是建立在形態學證據基礎上,支持現生的兩棲類三個目在古生代後期( 300mya )單系起源,並且無類和有類為姐妹群關系(蛙類假說) 。
  2. Bat : any of various nocturnal flying mammals of the order chiroptera, having membranous wings that extend from the forelimbs to the hind limbs or tail and anatomical adaptations for echolocation, by which they navigate and hunt prey

    蝙蝠:一種翼手目的夜間飛行的哺乳動物,它們具有能從前肢伸到後肢或巴的膜狀翅膀,其生理能夠靠聲波定位,並以此導航和捕食。
  3. In this paper, the mechanical character of composite level - stability - panel is analyzed, and the software clop is developed for the analysis of composite laminate strength

    論文分析了某型直升機復合材料平的力學特性,並開發了能夠用於層合強度分析的計算機程序。
  4. In spermatogenous cell, we could find dilated cytolemma, dilated nuclear membrane and fused crista of mitochondria. most of the sperm ' s cellular membrane dissolved and broke down into pieces. the central granule and mitochondrion showed little dissolving

    久效磷可以使金魚精子細胞質膜溶解,出現間斷性斷裂;有的精子頭部變形,頂部出現凹陷;少量精子頸部中心粒復合體溶解;精子頸部線粒體有溶解現象,精子部的膜斷裂。
  5. In this paper, the comparison of spermatogenesis and spermatozoal ultrastructures of four species of decapoda were investigated by electron microscopy ( tem ). we had tried to find structural variaton between the four species during their spermatogenesis. from this comparison study, we can pursue the evolution route of the four decapods

    本論文採用透射電鏡技術比較研究十足目( decapoda )物種浙江華溪蟹( sinopotamonchekiangense ) 、三疣梭子蟹( portunus , trituberculatus ) 、脊白蝦( exopalarmoncarinicandaholthuis )及羅氏沼蝦( macrobrachiumrosenbergii )的精子發生和精子
  6. First, the theory of fretting wear and studies on fretting fatigue were introduced and the parametric method was used in the process of creating the model of dovetail joints in ug software. the elastic contact problem is analyzed in finite element method ( fem ) and is used to the parameters " distribution and contact stress of the joint are obtained on the base of ansys code. with the effect factor of load frequency, the prediction method of fretting fatigue life of dovetail joint under low and high / low cycle complex load is proposed

    本文介紹了微動損傷的機理和微動疲勞壽命的研究方法;利用ug軟體對燕榫聯接創建了參數化實體模型;基於ansys軟體平臺求解彈性接觸問題,獲得了榫聯接接觸應力及接觸狀態量的分佈;在已有微動疲勞壽命預測模型的基礎上,引入載荷頻率影響因子,對低周、高低周復合載荷作用下的燕榫聯接進行了微動疲勞壽命的預測,與試驗果對比表明採用本文提出的方法預測榫聯接的微動疲勞壽命是有效的。
  7. On the basis of the former two - dimensions and three - components mhd numerical simulation, this paper analyses evolution of the magnetic helicity of various magnetic structures in the magnetotail

    摘要在二維三分量mhd數值模擬的基礎上,對地球磁不同類型磁的形成作磁螺度分析。
  8. The main study in this paper included as follows : the content and distribution of heavy metals in sediments and benthic organisms from the sewage stream in guangzhou city ; the acute toxicity and joint toxicity of mercury and selenium to swordtail fish ( xiphophorus helleri ) ; the damage of mercury to the indexes of antioxidant system in the gills and livers in swordtail ( including the measurement of the activities of total antioxidative capacity [ t ~ aoc ], superoxide dismutase [ sod ], glutathione peroxidase [ gsh - px ] and the concentration of malondiald - ehyde [ mda ] ) and the relief effects of selenium on it, as well as the physiological damage of mercury on the tissues, namely : the antagonistic effect of na + - k + ~ atpase activity on the tissues between selenite and mercury, and the ultrastructural damage under the exposure of mercury

    研究內容主要有:廣州市河涌沉積物及底棲生物體內重金屬含量及評價;汞和硒對劍魚的急性毒性和聯合毒性及安全濃度的評價;汞對劍魚鰓和肝臟中抗氧化系統的毒性,包括對總抗氧化能力、超氧化物歧化酶、谷胱甘肽過氧化物酶活力及丙二醛含量的測定及硒對其保護作用;汞對劍魚組織生理毒性即:汞對na ~ + - k ~ + atpase活力的影響及硒的保護作用和汞和對劍魚組織超微的損傷等。以高氯酸?硝酸消化法和火焰原子吸收分光光度法測定了廣州市河涌沉積物和底棲生物中重金屬含量。
  9. Compared to an ordinary rudder, the value of lift coefficient of ichthyoid rudder is about 30 % higher and the maximum rudder angle of it nearly reaches 45 degrees. ichthyoid rudder is a design under such a conception as to effectively utilize the propellers slipstream for rudder action, and featured by having a fish - shaped one - piece construction that is to say - no part of ichthyoid rudder can move in the water

    其研究的魚形舵是一個沒有在水下移動的魚形剖面單片,增加了全舵的剖面拱度,使螺旋槳流的折射水量增強,進而增大了水動力的作用,使之比普通流線形舵的升力提高30左右。
  10. For the 30. 2mm shaft, there are still larger over measure to load. the strength is increased by optimization. for ? 17. 4mm shaft, the strength is increased by enlarge the inner dimension of the spline ; for 30. 2mm shaft, the strength is increased by adjust the structure at the boundary between the key groove and the ring groove, the highest stress of the shaft is at bottom and terminal of the spline after optimization

    其中對17 . 4mm泵軸的優化,通過增大花鍵內徑,提高了花鍵齒底的強度,降低了應力集中點附近的應力;對30 . 2mm電機軸的優化,通過在軸承鍵的環槽端增加倒角,有效降低了該位置的應力集中,使軸的最大應力點從軸承鍵與環槽的交界處轉變到花鍵根部與收的交界處,提高了電機軸整體強度的合理性。
  11. The bottom edges of the endplates are mated to another winglike device, the lower main plane, which in turn is attached to the rear crash structure ? a carbon fibre cone bolted onto the gearbox

    終板末端邊緣被設計成與另一個翼狀地設備相配合,這個翼狀設備是一個較低的平面,附著在部碰撞上? ?變速箱上面的碳纖維錐形螺釘。
  12. Our previous studies confirmed that the central pathway of trigeminal proprioceptive sensation consists of four orders of neurons, and neurons from the first - to the fourth - order are located, respectively, in the mesencephalic trigeminal nucleus ( vme ), the dorsomedial part of the subnucleus oralis of the spinal trigeminal nucleus and its adjacent reticular formation ( vodm - lrf ), the " zone - shaped area " [ including the caudolateral part of the supratrigeminal nucleus ( vsup - cl ), the dorsomedial part of the principal sensory trigeminal nucleus ( vpdm ), the area ventral to the motor trigeminal nucleus ( avm ) and the area dorsal to the superior olivary nucleus ( ado ) ] and the contralateral ventral posteromedial nucleus ( vpm ) of the thalamus. because the pathway is a novel one, there has been little systematic morphological data available so far regarding the neurotransmitters involved in this pathway

    該通路中第二、三級神經元所在地分別是三叉神經脊束核吻側亞核背內側區及其鄰接的網狀( dorsomedialpartofthesubnucleusoralisofthespinaltrigeminalnucleusanditsadjacentreticularformation , vodm - lrf )和帶狀區[包括背側的三叉上核外側部( caudolateralpartofthesupratrigeminalnucleus , vsup - cl )和感覺主核背內側部( dorsomedialpartoftheprincipalsensorytrigeminalnucleus , vpdm )及腹側的兩個分別位於三叉神經運動核腹側和上橄欖核背側的暫命名為avm ( areaventraltothemotortrigeminalnucleus )和ado ( areadorsaltothesuperiorolivarynucleus )的兩個小核團] 。
  13. Ophichthidae possess similar morphological or osteological characters, so more difficult to be identified

    但其外形相似,又缺少鱗片、腹鰭和鰭等,鑒別特徵較少。
  14. For the rod penetrators used for 30mm naval gun, the structures, the ballistic performance, the penetration and their design are studied systematically. in the paper, the reasonable design of sabot and projectile core is presented and the influence of various factors on ballistic performance of rod penetrators is analyzed. additionally, the optimum design techniques in exterior ballistics for the small caliber fin - stabilized and sabot discarded penetrators are developed

    本文對海30艦炮適用的桿式脫殼穿甲彈的特性、彈道特性、穿甲威力及設計方法進行了系統研究,提出了合理的彈芯和彈托方案,研究了各種因素對桿式穿甲彈外彈道性能的影響,建立了一套小口徑翼穩定脫殼穿甲彈外彈道優化設計方法,並利用該方法在一定的戰術技術要求下對海30艦炮翼穩定脫殼穿甲彈進行了優化設計,得到了優化方案,研究果對海30艦炮以及同類小口徑火炮桿式穿甲彈的設計有重要的指導意義。
  15. On base of 30 years of engineering practice, the author summarized selection and design of preheater tower of nsp cement plant, and analysed the application area and the strong points and short comings of all style of structures under different cnodition

    合近30年的工程實踐,總了新型干法水泥窯窯塔架設計的選型,分析了在不同背景條件下窯塔架各種形式的適用范圍和性能特點。
  16. Chosen from the title of " the 300, 000t twin - skeg type vlcc with super breath and shallow draught ", the subtitle of general arrangement and structural optimization are studied in this paper

    本文合「超寬淺吃水雙鰭30萬噸超大型油船」課題,選擇其中兩個關鍵技術(即總體和優化)進行研究。
  17. Based on the fluid - structure interaction theory, the system can accurately and conveninently predict the behaviors of the aft - part vibration of ships

    該系統基於流固耦合理論,針對艦船特徵,可以準確方便地預報出艦船部振動特性。
  18. Through the optimal design work of advanced composite tail - structure, the author summarizes the general methods, processes and skillfulness of the optimal design techniques on the ansys software platform. it is a valuable experience useful for exploiting technical functions of large finite elements software

    本文通過復合材料平的優化設計工作,總了ansys軟體系統進行優化設計分析的一般步驟與方法,技術技巧等,對于開發大型軟體系統的技術功能做出了有益嘗試。
  19. The vibration and sound radiation behaviors of the stem of submarine with rudder and vane are studied

    摘要針對帶有舵翼的水下航行器模型,研究舵翼對水下航行器部的振動及聲輻射的影響。
  20. The chapter reiterations refer to the double - initials, double - endings etc. characteristic of the ancient vernacular chinese novels, which have played an important function in forming the peculiar linguistic style of such novels

    篇章上的疊架指的是古代白話小說特有的雙頭、雙,行文關鍵處再穿插韻文或反復吟味、或總前文、或預示下文等等,這些語言與篇章上的特點對形成古代白話小說獨特的語言風格起了重要作用。
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