根數 的英文怎麼說

中文拼音 [gēnshǔ]
根數 英文
[數學] radical; root
  • 根 : Ⅰ名詞1 （植物的營養器官） root （of a plant） 2 （比喻子孫後代） descendants; posterity 3 [數學] ...
  • 數 : 數副詞（屢次） frequently; repeatedly
  1. 3. shading levels effected on the growth of cultivated plantlet from adventitious buds in plastic house. lower shading level could increase the root development including root number, fresh weight and dry weight

    不同遮陰度對花葉玉簪品種不定芽組培苗煉苗的營養生長有較大的影響，低遮陰度能顯著增加植株的根數、根鮮重和根干重。
  2. The secular influence of solar mass - loss on the orbital elements of meteor steams is examined by using the method of celestial mechanics of variable mass in this paper

    摘要將作者在變質量天體力學所得理論結果應用於太陽質量損失對流星群軌道根數變化的長期效應上。
  3. So combine the item of “ space targets surveillance photoelectricity telescopes arrays system ”, this thesis does research in developing space targets visualization system. the main achievement in this thesis can be summarized as follows : 1. expatiate e the basic theory of satellite track dynamic, analyse the orbit characteristic of two - body problem and launch window, subastral point calculation, visibility and coverage analysis, two - line element sets

    本文結合「空間目標監視光電望遠鏡陣系統」課題，進行了空間目標可視化系統的設計和研究，主要作了以下幾方面的工作: 1 、闡述了衛星軌道動力學的基本原理，分析了二體軌道特性和發射窗口的基本特性，星下點軌跡計算、可見性和覆蓋分析和兩行根數。
  4. Strength of multifilament with different fiber number

    化纖復絲強度與纖維根數的關系
  5. The numerical computation for the secular variable of the semi - major axis, solar distance at perihelion, orbital periods and longitude of perihelion has been made for fifteen meteor streams by using the solution of gylden - meshcherckii equations

    利用g - m型變質量天體軌道根數變化方程的一階和二階解對15個流星群軌道半長軸、近日點距離、軌道周期和近日點經度因太陽質量損失造成的每世紀的長期改變效應做了數值計算，並得出計算結果。
  6. Usually the number of holes in the spinneret determines the number of filament in the yarn.

    一般噴絲頭細孔的數量決定了紗中長絲的根數。
  7. And then, according to the kind of satellite and the requirements for geodetic and astrometric study and the geometry of gnss ( gps, galileo ) satellite to track the space vlbi satellite, the six keplerian elements of chinese space vlbi satellite ( test - svlbi ) are selected and determined

    根據衛星軌道的分類、大地測量和天體測量對空間vlbi衛星的要求，以及gnss （ gps和galileo ）衛星對空間vlbi衛星跟蹤觀測的幾何條件而設計了我國空間vlbi衛星的六個軌道根數。
  8. The basis of dynamics and simulation includes the iterative flyout angle algorithm to the solutions to lambert problem and battin ' s universal conic section state extrapolate method. then spacecraft ' s orbit roots, maneuver impulse and maneuver time are discussed as the following four part : first of all, the chaser ' s one orbit roots is selected as a variable to simulate its influence to the large scale orbital maneuver. the research reveals fact that the orbit roots both of chaser and target should be close to each other to achieve better maneuver and rendezvous " ability, moreover, the best orbit maneuver and rendezvous occurs when both chaser and target ' s initial phase angle are equal

    為了研究了交會機動中追蹤器和目標器的軌道根數、機動時限和機動能耗等因素對交會機動的影響，模擬和分析分為以下四個部分:首先，研究了追蹤器軌道單個參數為變量情況下兩航天器大范圍交會機動問題，研究表明，追蹤器的變化參量與目標器相應的參量在接近的情況下可以獲得良好的交會機動特性，而對于兩航天器軌道共面的情況下，初始相位角相等時則獲得最佳的機動效果。
  9. Then, the chaser ' s two orbit roots are selected as variable and visualizing the simulation by contour plot. this part of research draws the conclusion the same as the first part when the target ' s orbit is circular orbit, while the selected two variable can be wildly changed if the target ' s orbit is elliptical orbit. next, wait time before orbit maneuver is simulated

    其次，利用可視化的等值線圖研究了追蹤器軌道兩個參數為變量的情況下大范圍軌道機動問題，分析表明對圓軌道目標器交會機動時，追蹤器軌道根數不宜與目標器軌道根數相差過大，而對橢圓軌道目標器交會機動時，追蹤器軌道根數可選范圍較大，機動策略和方法富於彈性。
  10. A certain number ( odd number ) of enameled flat wires, through precise action of a transposition unit, are edgewise bent, repeatedly crosswise transposed, and braided into a bundle conductor, and then the bundle conductor is wrapped with paper as its insulation so as to become a finished product

    設備的主要功能是通過換位裝置準確的機械動作將一定根數（奇數）的漆包扁線進行小邊彎曲，迭次交叉換位，編結成集束導線，然後包紙絕緣成為產品。
  11. Our results show that, during the evolution of a binary system, the system widens as it loses mass, and the orbital period increase, while orbital eccentricity remains nearly constant, which can explain the distribution regulation of orbital elements of normal g - k giant and barium stars and the distribution character of the heavy - element abundances of barium stars

    計算結果表明，隨著星風吸積過程的進行，在星風質量損失階段系統軌道半長軸將增大，導致軌道周期增大，而偏心率變化不大，由此可以解釋普通紅巨星雙星系統和鋇星系統的軌道根數的分佈規律和變化情況以及鋇星重元素豐度分佈特徵。
  12. The adiabatic heating model of exploding wires is used to simulate their blasting characters on strong pulsed current, andto gain the influence trends fo exploding wire numbers to their hlasting chacters

    用電爆絲絕熱加熱模型數值模擬了電爆絲在沖擊大電流作用下的電爆炸特性，電爆絲根數對電爆炸特性的影響。
  13. The sowing and seedling raising experiments of castanopsis hystrix seed with different artificial treatments showed 1 - year - old c. hystrix seedling average height and average dbh with the treatments of hastening germination and cutting root were 22. 0 % and 117. 0 % higher than those without the root cutting treatment, respectively, the individual - tree lateral root number increased by 127. 71 %, the afforested survival rate increased by 23. 0 %

    摘要對紅錐種子採用不同人工處理的播種育苗試驗表明：紅錐種子經催芽斷根育苗處理后，其1年生苗木平均高和平均地徑分別比無斷根處理的高22 . 0 %和117 . 0 %單株側根數增加127 . 71 % ，造林成活率提高23 . 0 % 。
  14. Automatic computation and modification of the dimension, the number of total heat tubes and rows, the body line of layout areas and other results involved. 4. the programming of various functional models and their communication, coded with visual lisp and vba and based on the opening structure of autocad and its entity database

    標示最大布管邊界，自動標注尺寸，自動修改並輸出布管參數及結果，包括：自動計算並輸出每一管程的管根數、起始排數、終止排數，自動計算並輸出每排熱管根數與拉桿根數。
  15. B ) soil nails support : according the geological condition, meeting the need of one nail and whole soil nails, the thesis confirm the length and number of soil nails

    B ）土釘支護系列：根據工程地質條件，滿足了體系穩定性和單根土釘極限承載力的條件下，確定了土釘的長度和根數。
  16. Insufficient twist, inadequate number of fibers in the yarn cross - section

    捻度不夠，在紗截面內纖維根數不足。
  17. ( the number of the sticks is the sum of all the numbers made by the sticks

    （小棒的根數就是擺出的數的各位數字之和。 ）
  18. No. of clamp band

    箍帶根數
  19. Autonomous relative orbit determination for satellite formation flying on basis of orbit element differences

    基於軌道根數差的衛星編隊自主定軌研究
  20. Used for testing the number of yarn in warp - wise or across warp of all kinds of fabrics in set length

    用於測定各種織物的經向或緯向一定長度內的紗線根數。
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