首尾向的 的英文怎麼說

中文拼音 [shǒuwěixiàngde]
首尾向的 英文
fore-and-aft
  • 首 : Ⅰ名詞1 （頭） head 2 （首領） leader; head; chief 3 （表示方位） aspect 4 （姓氏） a surname Ⅱ動...
  • 的 : 4次方是 The fourth power of 2 is direction
  • 首尾 : 1. （起頭部分和末尾部分） the head and the tail; the beginning and the end2. （始終） from beginning to end
  1. Dna sequence analysis indicated that tn5gusa5 is prone to insert into low gc content regions ; guanine is a preferential base at the first place and cytosine at the last site of target sequence

    在質粒上tn5gusa5也傾向于插入低gc含量區；堿基g和c分別在靶序列的首位和末尾出現的幾率高。
  2. Based on an engineering background, through numerical simulation of the flow field in the hp turbine of the energy efficient engine ( e3 ), the article research the unsteady flow in a transonic turbine stage, the unsteady phenomena in the stage include the shockwave, wake, shedding vortex, endwall vortex, passage vortex and leakage vortex, etc. there are two shockwaves generated on the vane the tailing edge, one on suction side is named moving shockwave, and name another on pressure side steady shockwave

    本文首先對于研究的意義和國內外研究的現狀做了簡要的介紹，再從某工程背景出發，通過對e3發動機高壓渦輪內流場的數值模擬，研究了干涉的周期性的問題，以及渦輪級內常見的非定常現象：激波、尾跡、脫落渦、根腳渦、通道渦、漏流渦。導向器尾緣會出現兩道激波，在吸力面的激波可稱為「運動」激波，壓力面的激波可稱為「定常」激波。
  3. According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d

    本文首先介紹了ld泵浦nd ： yag激光器的發展狀況、主要特性及其應用，從四能級速率方程出發，推導了ld泵浦nd ： yag激光器的閾值、輸出功率和斜效率的表達式，並簡述了激光器的工作原理、結構型式和倍頻方法；其次，以空間相關的速率方程為基礎，提出了ld端面泵浦nd ： yag激光器的設計方法，給出了一定泵浦耦合方式下，振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據，以此為依據，設計了自聚焦透鏡耦合小功率ld泵浦nd ： yag激光器和透鏡組耦合高功率ld泵浦nd ： yag激光器，對激光器的輸出功率和功率穩定性等特性進行了實驗研究；再次，在帶尾纖輸出的高功率ld泵浦nd ： yag激光腔內插入一隻空液晶盒，觀察到了激光器以單縱模運轉；最後，根據泵浦光焦斑端面位置對激光輸出功率的影響規律，提出了ld端面泵浦nd ： yag激光位移傳感新方法，並進行了理論和實驗研究，研究結果表明：當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時，激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律，測量范圍和靈敏度依賴于泵浦功率，隨著泵浦功率的增加，測量范圍擴大，靈敏度提高，當端面泵浦功率為7 . 24w （最大輸出功率為1 . 926w ）時，激光位移傳感器的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。
  4. This ferry has a raked forecastle, single deck and double bottom. six meter long x five meter wide steel ramps one each are arranged on bow and stern for cars roll - on roll - off longitudinally

    本船具有前傾艏樓單層甲板雙底，在艏艉部均設有6米長5米寬的鋼質跳板，作為汽車上落通道，汽車可以首尾縱向上落碼頭。
  5. The lgv then crashed into the rear part of the first container truck on the first lane

    輕型貨車其後撞向第一線首輛貨櫃車的車尾。
  6. The water levels is correlated to seismicity. hypocentrum move to the top of reservoir, and form two seismic concentrated place - linmal2o3han and songwan

    蓄水位和地震有著明顯的正相關性，震區由庫尾移向庫首，並在丹庫的林茂山和宋灣形成了兩個地震密集區。
  7. Another serious problem is traffic congestion, endless queuse of cars crawling bumper to bumper through all the main streets

    另一個嚴重問題是交通堵塞，在所有的主要街道上，汽車長龍首尾相接，緩緩向前爬行。
  8. Another serious problem is traffic congestion, endless queues of cars crawling bumper to bumper through all the main streets

    另一個嚴重問題是交通堵塞，在所有的主要街道上，汽車長龍首尾相接，緩緩向前爬行。
  9. Firstly, rollers ’ variety and structure are introduced. rollers and housings are analyzed by fundamentals of belt rollers. secondly, the establishment of fem is a key step of cae ( computer aided engineering ) analysis

    首先，本文介紹了滾筒的種類及結構，並結合輸送機的工作原理分別對傳動滾筒、改向滾筒以及機頭（尾）架的受力情況進行分析。
  10. Its immediate influence upon the totality of traditional chinese narrative structure are seen in such aspects as allegorical structures, the antithesis of the two reversible poles, the cyclic coherence between the beginning and the end, the analogical conjugation of fragments, and the symbolic spatial distribution, thus forming a tendency of spatialization in traditional chinese narrative

    它直接影響著中國傳統敘事結構整體性的結構寓意，可逆性的兩極對反，循環性的首尾照應，類同性的片段綴合以及具有象徵意義的空間布局，使得中國的傳統敘事表現出一種空間化傾向。
  11. The engineering work load detailed list reckoning method has the advantages of simple, clear, operation easily, remaining the account settlement rarely, etc compared with the present day running unit price budgeting method, which will be the direction of national engineering cost system reform, cost management first, this text states thoroughly the existing problem of the present day national engineering mode and price reckoning method, and the necessity of application right away and the existing problem, and then make a detailed discussion of the principle of quota reckoning and the engineering work load detailed list reckoning, so that we may be safe to draw such a conclusion that the new cost management system of the new price reckoning method is a necessary way to adapt to the international competition

    工程量清單計價法與目前我國實行的預算單價法相比，有簡單、清晰、可操作性強、不易留結算尾巴等優點；是我國工程造價體制改革的方向。本文首先全面闡述了目前我國工程造價管理模式和計價方式存在的問題以及現在推行的必要性及存在的問題，進而對定額計價和工程量清單計價的原理進行了詳細的論述，從而得出實行新的計價方式的造價管理體制是適應國際化競爭的必走之路。然後，對即將實行的工程量清單計價模式各單位需要面對的風險，提出幾點抵禦風險措施。
  12. 2. the pre - flashover phenomena of alumina insulators in vacuum have been investigated. according to the experimental results, a reversed pre - flashover current was observed repetitively, which often occurs at the tail of pulse voltage close to zero ( sometimes after the applied pulse voltage )

    首次發現了大量的、重復性的反向預閃絡現象，即在沖擊電壓波尾附近電壓幅值已經接近零、甚至在沖擊電壓作用完后（已沒有電壓）的情況下仍然存在試樣表面發光現象，同時伴有反向的電流脈沖。
  13. In addition, for construction of prototype dna vaccine, pcmv4 - lzp3, the cloned lzp3 full - length cdna was subcloned into a eukaryotic expression vector, pcmv4. these preliminary results could lead to further investigation for the development of immunocontraceptive vaccine based on lzp3 for lagurus population control

    本工作首次克隆了草原兔尾鼠卵透明帶3全長cdna ，已向genebank申請注冊為新基因，保護了我國的野生動物基因資源，為哺乳動物生殖機理的研究提供了新的資料。
  14. To the northwest and north of beijing, a huge, serrated wall zigzags it s way to the east and west along the undulating mountains

    在北京西北和北面連綿的群山中，一道鋸齒形的高墻隨山勢起伏蜿蜒，向東西方向延伸，不見首尾。
  15. And from the different ranks about twenty men advanced to the front. the drummer, who was their leader, turned round facing the chorus and waving his arm, struck up a soldiers song, beginning : the sun was scarcely dawning, and ending with the words : so, lads, well march to glory with father kamensky. this song had been composed in turkey, and now was sung in austria, the only change being the substitution of the words father kutuzov for father kamensky

    一名領唱的鼓手向歌手們轉過臉來，他揮一揮手，唱起悠揚婉轉的士兵之歌，歌曲的頭一句的字樣是： 「朝霞升，太陽紅」收尾一句的字樣是： 「弟兄們，光榮歸于卡緬斯基爺爺和我們」這首歌曲編寫于土耳其，現時在奧國流行，只是歌詞中有所改動，其中的「卡緬斯基爺爺」已被改成「庫圖佐夫爺爺」 。
  16. As with all other colors the preferred pattern has a white blaze that continues over the top of the head into the white area in the neck, a white end of the tail, white fore legs up till the elbow and white socks on the hind legs

    所有顏色邊境牧羊犬的首選斑紋樣式都應該是? ?頭部有一塊白斑，從頭頂延伸到脖子的白色區域，有白色的尾尖，白色的前腿（前腿上的白色向上至肘部）和好像穿著白襪子的後腿。
  17. I lingered at the gates ; i lingered on the lawn ; i paced backwards and forwards on the pavement ; the shutters of the glass door were closed ; i could not see into the interior ; and both my eyes and spirit seemed drawn from the gloomy house - from the grey hollow filled with rayless cells, as it appeared to me - to that sky expanded before me, - a blue sea absolved from taint of cloud ; the moon ascending it in solemn march ; her orb seeming to look up as she left the hill - tops, from behind which she had come, far and farther below her, and aspired to the zenith, midnight dark in its fathomless depth and measureless distance ; and for those trembling stars that followed her course ; they made my heart tremble, my veins glow when i viewed them

    我的目光與心靈似乎已從那幢陰暗的房子，從在我看來是滿布暗室的灰色洞穴中，退縮出來，到達了展現在我面前的天空一片雲影全無的藍色海洋。月亮莊嚴地大步邁向天空，離開原先躲藏的山頂背後，將山巒遠遠地拋在下面，彷彿還在翹首仰望，一心要到達黑如子夜深遠莫測的天頂。那些閃爍著的繁星尾隨其後，我望著它們不覺心兒打顫，熱血沸騰。
  18. His was deliberate creative genius, and, before he began a story or poem, the thing itself was already alive in his brain, with the end in sight and the means of realizing that end in his conscious possession

    他的天才是審慎的創造天才。在他汗始一篇小說或一首詩歌之前，那東西已經活躍在他腦子里。他看得見結尾，心裏也明白通向結尾的路。
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