無首系 的英文怎麼說

中文拼音 [wúshǒuxì]
無首系 英文
singular set
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 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...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  1. Firstly, the random mathematics model of the guidance system is set up, with the random factors such as the seeker, the guidance law, the automatic pilot, the dynamics, the relative kinematics taken into account

    首先進行反輻射無人機系統的隨機建模，包括導引頭、制導律、自動駕駛儀，機體動力學，相對運動學等，建模時必須考慮隨機因素的影響。
  2. This paper is based on " the remodeled item of the 122mm automatic barbette servo system ". it introduced the controlled project of brushless direct current motor realized by dsp at first. on the base of analyzing and studying the driving wave of the brushless direct current motor thoroughly and fully, it carried on the servo system ' s simulink and presented the concrete software and hardware ' s devise of the whole system in the end

    本論文的撰寫是以「 122mm自行迫榴炮伺服控制系統的改型項目」為基礎，首先介紹了dsp實現無刷直流電機的控制方案，在深入、系統的分析和研究了無刷直流電機驅動波形的基礎上，然後進行了伺服控制系統的模擬，最後給出了伺服控制系統具體的軟硬體設計。
  3. A genetic transformation model for the brown seaweed undaria pinnatifida has been primarily set up by using micro - particle bombardment as the method, female or male gametophytes as the gene recipients, hybridization as the regeneration route and chloramphenicol, hygromycin or basta as selective reagents

    本文從轉化受體、轉化方法、報告基因、再生途徑、篩選方法等方面對裙帶菜的遺傳轉化進行了研究。首先，分離並建立了裙帶菜雌雄配子體的無性繁殖系，進行了裙帶菜的不同再生途徑的研究。
  4. The present work indicates the organic nf membranes and the inorganic nf membranes all have shortages, so develop composite nf membranes that have low cost, mechanically strong and thermally / chemically - resistant, easy to cleanout and good performances is a very important task. in this paper, the preparation of inorganic - organic composite nf membranes were presented. this composite comprise a porous sio2 / al2o3 support substrate, the pore diameters of which ranging from 10 to 15 nm, this inorganic support substrate having a polymer membrane which comprises an polyvinyl alcohol ( pva ) or polyamide ( pa ) densely deposited on at least one of the face surfaces thereof, the structural porosity of such pva and pa membrane ranging from 3 to 5 nm

    本論文以開發無機?有機復合納濾膜為出發點，首先在al _ 2o _ 3多孔微濾膜上利用溶膠?凝膠法制備sio _ 2 al _ 2o _ 3無機復合超濾膜作為無機?有機復合納濾膜的基膜；選用聚乙烯醇和聚酰胺為表面功能層材料，分別探討了以羥基丁二酸和磺基水楊酸為混合交聯劑，採用浸塗法制備了聚乙烯醇sio _ 2 ? al _ 2o _ 3復合納濾膜；以均苯二甲酰氯、哌嗪和二胺為單體，採用界面聚合法制備了聚酰胺sio _ 2 ? al _ 2o _ 3復合納濾膜，並對影響膜性能的諸多因素進行系統研究。
  5. Potentially "high-yielding" clones are likely to be the material which first come to hand.

    有「高產」可能的無性系大概首先是隨手可得的材料。
  6. Some tendency of tn5gusa5 transposition were found that all preferred sites of tn5gusa5 in xcc 8004 genomic dna are in at - rich regions ; target sequences of tn5gusa5 have some features that the probabilities of guanine and cytosine are high respectively at the head and tail base of target sequence ; the level of gene transcription does not influence insertion density of tn5gusa5 significantly

    結果表明， tn5gusa5插入位點有一定的規律性： tn5gusa5在xcc8004基因組上傾向于插入低gc含量（ 50左右的區域插入密度最高）區段；插入位點的靶序列有一定的特異性，在靶序列的首位鳥嘌呤出現的幾率高，而在靶序列的末位胞嘧啶出現幾率高； tn5gusa5的插入密度與該區段基因的轉錄水平無明顯關系。
  7. Firstly, the connected end sets of the relay lines are got using the breadth first search algorithm and the connected relationship of wiring terms is got in the electrical circuit diagram according to different cad block structure of different element type. secondly, the appropriate specification of the relay element is chosen by using the equinoctial graph algorithm, and the panel layout diagram is generated automatically by the combining automatic layout and manual intervention. finally, the optimized path algorithm which passes each vertex in the completed non - directional graph once and only once is put forward, this algorithm and the prim minimum spanning tree algrotithm can generate the inner panel wiring diagram and terminal wiring diagram automatically

    首先，採用廣度優先搜索演算法查找電氣原理圖中的連通導線端點集，並根據不同類型的繼電元件對應的cad圖塊結構的不同，得到電氣原理圖中元件接線端子之間的連接關系;其次，根據二分圖匹配演算法為電氣原理圖中繼電元件選擇合適的型號和規格，並採用人工干預和自動布置相結合的方法完成屏面布置圖的自動生成;最後，提出了完全無向圖中經過每個頂點一次且僅一次的優化路徑演算法，利用該演算法和經過預處理的prim最小生成樹演算法自動生成屏內安裝接線圖和端子接線圖。
  8. Firstly, in spherical coordinate system, the sovp formulation for the time - harmonic electromagnetic fields of the current dipole in conductive infinite - space is derived, using reciprocity theorem and transforming relations between special functions. then, selecting appropriate coordinate system, using superposition principle, the boundary - value problem of modified magnetic vector potential on the problem of a time - harmonic current dipole in spherical conductor is solved and analytical solution is obtained. finally, by means of the addition formulas of legendre polynomial and spherical harmonics function of degree n and order 1, the analytical solution in spherical coordinate system specially located is transformed into that in spherical coordinate system arbitrarily located

    首先利用特殊函數間的轉化關系和互易定理推導得到了無限大導體空間中球坐標下時諧電流元電磁場的二階矢量位形式：然後利用疊加原理，選擇合適坐標系，求解了導體球中時諧電流元的修正磁矢量位邊值問題，得到了問題的解析解；最後依據不同坐標系下電磁場解的轉化原理，藉助勒讓德多項式和n次1階球諧函數的加法公式，將坐標系特殊安放時的電磁場解析解變換到坐標系一般安放時的解析解，給出了球內電場和球外磁場的並矢格林函數。
  9. Firstly, the surface characteristic of polystyrene particle is changed from water detesting to water intimity by using special techniques and admixtures so mat the compound quality with inorganic materials is insured. secondly, the contradiction between the weight and strength is solved through optimizing the particle size and using composite fiber and the best heat conductivity is achieved under the condition that the necessary strength is met. in the research process, the author solved the problem of fiber dispersing in insulating materials so that the contraction of the material is controlled

    課題研究中，首先採用特殊的改性工藝及外加劑實現對聚苯乙烯顆粒表面的成功改性，使其表面由憎水轉化為完全親水，確保與無機材料的復合質量；其次，通過採用優化骨料級配及使用復合纖維等措施解決了保溫材料的輕質與強度的矛盾，使保溫材料在滿足必要的強度的前提下，導熱系數降至最小；並且，課題研究中成功解決了纖維在保溫材料中均勻分散的問題，達到了抑制保溫材料收縮的目的；最後，通過採用復合外加劑、合適的膠凝材料及合理的配比等措施確保該保溫材料具有良好的和易性，滿足施工的要求。
  10. In the third part, the chapter puts forward three dimensions of causality and discusses the relationships between the attribution and expectancy, and the emotions, and achievement motivation. and two kinds of theory of achievement and motivation - self efficiency theory and learned helplessness theory concerning the attribution are given. in the fourth part, the definite conclusion has been come from the data stat and the resolution analysis in the base of the status investigation of students ' s math learning attribution by the students and the teachers in high schools

    全文共分為六個部分：第一部分簡述歸因研究的理論背景，提出所要討論的問題第二部分對歸因、數學學習歸因及其含義進行闡述；第三部分首先指出了原因的三個分類維度，從原因的分類維度出發討論歸因與期望、情緒、情感及成就動機之間的關系，同時指出兩種與歸因有關的成就動機理論?自我效能理論和習得無助理論；第四部分是有關中學生及中學數學教師對學生數學學習歸因的狀況調查，通過數據統計及結果分析得出了一定的結論。
  11. With regard to the protection system of inorganic zinc - rich primer + epoxy micaceous iron oxide intermediate + polysiloxane finish having been used for major bridges for the first time and the anti - rust and anti - slip inorganic zinc - rich coating used for the bolted and welded surfaces of the bridges, the paper describes the protection system and coating workmanship in considerable details from aspects of the material properties, construction methods and coating inspection

    針對在大型橋樑上首次應用的「無機富鋅底漆環氧雲鐵中間漆聚硅氧烷面漆」的防腐體系和栓接面採用的無機富鋅防銹防滑塗料，從材料特性、施工方法及塗層檢驗等幾方面做了較詳細的論述。
  12. Prepar1ng po1 ypropy1ene / montmori l lon 1 te nanocomposi tes ( pcn ). ma1 ei c anhydride ( mah ) / styrene ( st ) was app1 ied to graft wi th pp and montfnori 1lo - nite was interca1ated by ppalg - - mah / st in the same t1me. effects of intercalat ion agent htab on the basal spaci ng ( d., . )

    首先考察了插層劑對蒙脫土片層間距的影響，小角x -衍射表明在插層劑十六烷基三甲基溴化銨（ htab ）的作用下，無機土片層間距最大可被撐至4 . 0nm ，並且d _ （ 001 ）值與插層劑的濃度大小有密切的關系。
  13. Then a vsc controller using on - off valve and two potentiometers are designed for cushioning control system. it can realize the balanced, no shock, no reversing cushioning. experiments under different air pressure, load mass are carried out, and the results prove that the vsc controller can be used in pneumatic cushioning

    第五章首先介紹了變結構控制的原理和應用發展情況，然後針對本實驗系統設計了一個使用開關閥和端位位移傳感器的變結構控制方案，實現緩沖過程的平穩無沖擊和無回彈要求，並在不同氣源壓力、不同負載質量下分析了控制性能的變化，實驗結果證明緩沖控制採用變結構控制是可行的，並具有很強的魯棒性。
  14. The dissertation wants to construct a systematic structure of precontract institution. at first, we analyze the precontract ' s legal concepts and its legal characteristics, and points out that the precontract is a contract in essence, however it has n ' t the characteristic of human being " s nominate transaction, the author discuss it from the viewpoint of the procedure to make a contract

    論文旨在構築預約合同制度的系統框架，首先從語源學分析了預約的法律概念，剖析其法律特徵，指出預約本質上是債權合同，但它不具有人類類型化交易的特徵，屬于無名合同，筆者把它作為合同締結程序來分析。
  15. This paper introduces the fundamental and characteristic of the fuel cell, analyzes the necessity and detail scheme of adding assistant energy sources to the fuel cell power generation system. considering for the special demand of the fuel cell power generation system, this paper gives out a push pull forward converter ( ppfc ) with passive and lossless dual cdd snubber circuit

    本文首先闡述了燃料電池的基本原理和性能特點，分析了在燃料電池發電系統中引入輔助能源系統的必要性及具體的配置方案，然後針對燃料電池發電系統對dc / dc變換器設計的特殊要求，提出了一種加雙cdd無源無損緩沖電路的推挽正激變換器（ pushpullforwardconverter ， ppfc ） 。
  16. Automated response to intrusions has become a major issue in defending cri tical systems because the traditional network security components run short of cooperation and automation. the system is requested to have the capability to cooperatively react without human intervention. an infrastructure that supports collaboration between security components is critically needed

    由於傳統的網路安全組件在檢測與響應方面缺少協作，自動化程度低甚至需要人工配置，而入侵者卻可能在計算速度等方面大做文章，所以對網路入侵的自動響應已經成為關鍵系統防護中的首要問題，也就是說，我們要求系統在無人參與的情況下，具有協同檢測和自動響應的能力。
  17. Mayor cory booker says he had nothing to say to the surrendering suspect

    市長科瑞.布克表示，他與這名自首的嫌疑犯並無關系。
  18. The focus on all of this is further reinforced ( especially if the skin of the body you inhabit is of a shade that provokes judgement among the unenlightened who identify with the body ) by cultural importation of opiate drugs by the controlling powers of society, inundation with neurologically mind - bending pharmaceuticals and the rest of it, all of it designed specifically to keep the attention of your consciousness bound within the purview of the lower three structural areas of the brain, as well as to financially sustain cultural and economic infrastructures based on ego, security, image, sensation and power - - - all of which have absolutely nothing to do with who the entity really is or why the entity is here on earth in the first place

    由於社會控制力的鴉片文化的輸入，對所有這些的焦點被進一步增強（尤其你居住于其中的體膚像是一個簾子，它驅使你做出你就是你的身體的愚昧的判斷） ，再加上，扭曲頭腦的神經醫藥和其他，所有這些，都特意使你意識的注意力局限於頭腦中較低的三個結構區域中，以及在財政上維持基於自我、安全、形象、感覺和力量的文化和經濟基礎? ?所有這一切都與這個實體真正是誰、或首先與為什麼這個實體在地球上毫無關系。
  19. Karyotypes of lilium sulphureum baker apud hook. f. among populations, within populations as well as within clones were studied firstly

    首次對淡黃花百合居群間、居群內和無性系內核型進行研究。
  20. To be sure, it is quite possible that ravaillac had no accomplices, also that, even if he had, they were in no way accessory to the fire of 1618

    不過這也可能是真的:首先，拉瓦伊阿克並沒有同謀者；其次，即使萬一有，他的同謀者也可能與一六一八年那場火災毫無關系。
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