螺旋研究 的英文怎麼說

中文拼音 [luóxuányánjiū]
螺旋研究 英文
spinning investigation
  • : 1. [動物學] (軟體動物) spiral shell; snail; conch 2. (螺旋形的指紋) whorl (in fingerprint)
  • : 旋Ⅰ動詞1 (旋轉) whirl 2 (用車床切削或用刀子轉著圈地削) turn sth on a lathe; lathe; pare Ⅱ名詞...
  • : 研同 「硯」
  • : Ⅰ動詞(仔細推求; 追查) study carefully; go into; investigate Ⅱ副詞[書面語] (到底; 究竟) actually; really; after all
  • 螺旋 : 1 (具有螺紋的圓柱體 屬于斜面類的簡單機械) corkscrewspin; screw; spiral; helix 2 (螺旋現象;尾旋...
  • 研究 : 1. (探求) study; research 2. (考慮或商討) consider; discuss; deliberate
  1. Experimental study on the immunity - enhancing effect of spiroid alga sucking tablet

    藻口含片增強免疫功能的實驗
  2. This work provided evidence that h. pylori had been transported across the bering strait by the ancestors of present - day amerindians and thus has been present in humans for at least 11, 000 years

    這項證明,幽門菌也跟著美洲印地安人的祖先,越過白令海峽傳到美洲,因此它們在人類體內至少已經存在1萬1000年了。
  3. Study on electronic spectra and second - order nonlinear optical property of substituted 60 fulleropyrrolo barbituric acid derivatives

    取代共軛化合物非線性光學性質的理論
  4. Experimental study on half - life period of carotin in spirulina

    藻中胡蘿卜素半衰期實驗
  5. Nonlinear spiral simulation of chandler wobble orbit

    擺動軌跡的非線性線擬合及機制的
  6. Msct had a low sensitiity for detecting lesions in the left circumflex artery ( 59 % ) and in the right coronary artery ( 52 % ), the inestigators note

    者表示,多層ct對于檢測出冠狀動脈左迴支和右冠狀動脈的損傷情況靈敏度較低,前者僅有59 % ,而後者也只有52 % 。
  7. Examination shows that the heart of andrias davidianus have three chamers - two atria and one ventride, the atria on the left of midline, the ventricle on the right of midline, and the atria are divided into two cavities by septum interatriale. there are four valvula semilunaris in conus arteriosus, but no spiral valve in conus arteriosus. the coronary artery is made by arterica carotis externa branches

    結果表明,中國大鯢循環系統解剖學特點為: 1 .心臟:心房心室為左右排列,兩心房前後排列,共有4對動脈弓,其中第二、三對動脈弓匯合成一條背主動脈;動脈圓錐基部與心室相接處有4個瓣膜,動脈圓錐內沒有瓣,動脈圓錐與腹側主動脈干之間有3個半月瓣;房間隔有穿孔;冠狀動脈由頸外動脈的分支匯合而成。
  8. In this dissertation, through computer simulation, the problems of modeling, control and guidance of auvs are presented. the first part of this dissertation addresses the problem of dynamically modeling of auvs, and derives thrusters " two - dimension nonlinear dynamic model, which has axial flow speed and propeller rotational velocity as two state variables, voltage or current of motor as inputs, and thruster force and torque as output. the second part focuses on the nonlinear adaptive sliding mode control of auvs in diving plane and steering plane

    本論文系統了自主式水下航行器的建模、非線性自適應滑模控制、以及深度調整和水平面導引方法等問題,具體成果和創新點如下1 、根據流體力學理論,建立了槳推進器的動態模型,它以槳來流速度v _ p和槳轉速n為狀態變量,以電機施加轉矩為輸入,槳推力t和轉矩q為輸出。
  9. Since complicated differential and integral operations were involved in the kernel of the integral equation, we simplified the equation and got the nakano equation. as instances, the planar archimedean spiral antenna, the planar equiangular spiral antenna, the monofilar helical antenna, the conical helical antenna with fixed ascending angle and the conical equiangular - spiral antenna were analyzed through the moment method. all of the results matched fairly well with the references and experiment results

    這種方法的積分方程的積分核里含有復雜的微積分運算,為了簡化計算,本文在推廣的海倫積分方程的基礎上,對方程進行了簡化,推導了nakano方程,並以平面阿基米德天線,平面等角天線,軸向模圓柱天線,具有固定升角的圓錐天線和圓錐等角天線為例,用矩量法求解了天線上的電流分佈,天線輻射的寬頻帶特性,所得的結果均與參考文獻吻合很好。
  10. Exploration on triple helix of university - industry - government

    政府三重螺旋研究
  11. Experimental studies of helicon plasma

    波等離子體的實驗
  12. Hydrogenated amorphous silicon nitride ( a - sinx : h ) films have been deposited by helicon wave plasma enhanced chemical vapor deposition ( hwp - cvd ), the effect of sih4 / n2 rate on the properties of the samples is systematically studied, and the critical experiment condition is obtained under which a - sinx : h films with different compositions are deposited

    本工作採用波等離子體化學氣相沉積( hwp - cvd )方法制備了氫化非晶氮化硅( a - sin _ x : h )薄膜,系統地了不同反應氣體配比對薄膜特性的影響,得到了沉積不同組分a - sin _ x : h的典型實驗條件。
  13. 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

    的魚形舵是一個沒有在水下移動的魚尾形剖面單片結構,增加了全舵的剖面拱度,使槳尾流的折射水量增強,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。
  14. Effects of physical factors on the growth of strain ag were investigated, and suitable growth condition for strain ag were as follows : light intensity, 25001ux ; temperature, 30 ; inoculum volume, 10 % ( v / v ) ; ph, about 9. 0

    物理因子對藻生長的影響的試驗中發現,光強2500lux 、溫度30 、接種量10 、 ph9 . 0左右時,有利於藻的生長。
  15. The researchers divided their cohort into two groups : 38 patients received a water enema, and 38 underwent room - air insufflation. after insufflation with air or water, patients were imaged with mdct

    人員將患者均分成兩組,一半患者接受水灌腸,另一半則採取室內空氣注入對比。注入水或空氣後患者行掃描成像。
  16. Research on design of testing equipment for lager - scale marine propeller static equilibrium

    大型船用槳靜平衡檢測裝置設計
  17. On this base, it is studied that the general principle of normal circular - arc gear transmission, and with the instruction of which, the principle and technology of the loxodrome normal circular - arc spiral bevel gear transmission is studied

    在這一原理指導下,論文從解析與實驗結合上,了斜航式法向圓弧錐齒輪傳動技術。
  18. Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece

    將液體火箭發動機燃燒室的冷卻通道設計為斜航線(等傾角線)槽形,可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大,所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點,提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜,手工編制數控加工程序難度大.為了解決數控加工程序的編制問題,了斜航線的數學模型,開發了自動編程軟體系統.使用該系統,可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大,加工難度大,是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗,了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術,已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用,驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的製成功,對其他相似類型零件的加工亦具有參考意義
  19. Whatever the “ magic bullet ” model, “ two - step flow ”, “ uses and gratifications ”, or “ agenda - setting ”, “ the silence spiral ”, all provide precious theoretical and empirical studies for us

    無論是「魔彈論」 、 「兩極傳播」 , 「利用與滿足理論」 ,還是「議程設置」 、 「沉默的」 ,都為大眾媒介的提供了寶貴的範例。
  20. Andrew, r. graham, h. f. and christopher, n. w. methods in molecular medicine, vaccine protocols [ m ]. humana press, totowa new jersey, 1996 : 10

    時曼華,于恩庶.中國鉤端體病地理流行病學[ m ] .亞洲醫藥出版社, 2000 , 19 22
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