有限母體 的英文怎麼說

中文拼音 [yǒuxiàn]
有限母體 英文
finite population
  • : 有副詞[書面語] (表示整數之外再加零數): 30 有 5 thirty-five; 10 有 5年 fifteen years
  • : Ⅰ名詞(指定的范圍; 限度) limit; bounds Ⅱ動詞(指定范圍, 不許超過) set a limit; limit; restrict
  • : Ⅰ名詞1 (母親) mother 2 (泛指女性長輩) one s elderly female relatives 3 (配套的兩件東西里的凹...
  • : 體構詞成分。
  • 有限 : limited; restricted; finite; a little; not much
  • 母體 : 1 (孕育幼兒的人或雌性動物的身體) the mother s body; the (female) parent; parent body 2 [原子...
  1. In this paper, firstly the macro parameter of the series connection app was comprehensively analyzed, among which the trajectory location of the bullet emission and the terminal velocity of the bullet were mainly analyzed, and the feasibility of the series connection app to cope with explosive reactive armor was demonstrated. and then the macro design about the head of the series connection app was made, among which a particular analyse about the bullet " s launching process was made, from which we concluded the relation between the thickness of the airproof loop and the velocity of the bullet detached from the carrier and the relation between the length of the bullet and the velocity of the bullet detached from the carrier and the relation between the length of the bullet and the burning rate of the powder and the relation between the length of the bullet and the maximum pressure of the emission hole and the relation between the length of the bullet and the emitting time of the bullet, and the reasonable str ucture of the head of the carrier and bullet were designed, then the intensity of the head of the carrier was checked out using of the software of ansys

    本文首先對子式穿甲彈總參量作了全面的計算分析,其中主要分析了子彈射出的彈道位置和必要的子彈著靶速度,論證了子式穿甲彈對付爆炸式反應裝甲的可行性,然後對子式穿甲彈彈頭部進行了總設計,其中主要對子彈的發射過程進行了詳細的分析,得出了彈彈頭部發射孔內閉鎖環厚度與子彈飛離彈速度的關系、子彈長度與子彈飛離彈速度的關系、子彈長度與火藥燃燒率的關系、子彈長度與彈彈頭部發射孔內最大壓力的關系以及子彈的長度與子彈發射所需時間的關系,設計出了合理的彈彈頭部結構和子彈的結構,並利用ansys元分析軟彈彈頭部的強度進行了校核。
  2. This paper focuses on the research of the stress mechanism of the ribbed shell structure in statics, dynamics and under the explosive load on the basis of the engineering practice of cave depot of single aircraft. in this paper, according to the classical shell theories, the basic differential equilibrium of the ribbed shell structure and the finite element analysis of 3d rippled plate are established, in which the function of annular ribs reinforcement bars and 3d ripped steel plates are distributed in the range of the steel, and the functions along the longitude direction of tension, bending, and torsion are neglected ; applied with dynamic analytical theory, the dynamic model of ribbed shell structure and the analytical theory model of elastic - plastic are set up ; the triangle series method is used to solve the displacement and stress under the distributed load and the concentrated load of the ribbed shell structure

    本文以軍用機場地面單機掩蔽庫工程建設為工程背景,首次對內襯三維波紋鋼板混凝土拱型復合結構的受力機理進行了靜力、動力和爆炸荷載的分析研究。根據將橫肋、鋼筋及三維波紋鋼板的作用均勻分佈在殼范圍內的情況,忽略橫肋、鋼筋及三維波紋鋼板沿殼線方向的抗拉、抗彎及其抗扭作用,首次推導出了內襯三維波紋鋼板混凝土殼的微分平衡方程,建立了元計算模型,並採用三角函數法,求解了三維波紋鋼板混凝土拱型復合結構在分佈荷載和集中荷載作用下的位移響應和應力響應,並與普通殼進行了比較。
  3. These including : based on the reliability checkout of experiment data, the optimum fit of probability model by finite contrast method can be used to avoid type ii error and the estimation of distribution parameter with extended bayesian method to avoid the phenomenon that the results err from matrix owing to the lack of experiment data

    主要做了以下工作:在土工實驗數據進行可靠性檢驗的前提下,用優度檢驗的比較法擬合概率模型,可以避免納偽現象的發生:用經驗bayes方法估計分佈參數可以解決由於實驗數據不足而可能導致的估計結果背離的現象。
  4. With the development of globalization and china ' s enter into wto, group enterprises will play important role in the approaching of our national economy to the world economy improving international market competence and strengthening national economy power. financial management system is a system trying to set the financial rights responsibility and benefit among the various financial management class. its core is how to allocate the financial power and solve the " cost " and " profit " of centralization and decentralization between mother enterprises and its affiliated enterprises. how to build a financial management system which is suitable for the enterprises group and make it operate effectively is a significant task concerning the survival and development to enterprises group

    隨著全球經濟一化的加快推進和我國加入wto ,企業集團這種經濟聯合形式對我國經濟走向世界、增強國際市場競爭力、提高國家綜合經濟實力將產生重要作用。企業集團財務管理制是明確各財務管理層級的財務權、責任和利益的制度,其核心是如何配置財務管理權,主要是解決子公司之間集權與分權的「成本」和「利益」的最優度的確定問題。構建適應企業集團發展需要的財務管理制,使之效運行,對企業集團的生存與發展具重大意義。
  5. Established in 1993, orient sun international media group, a full service media, promotion, event, publishing and marketing service, has been providing quality, professional and creative means of communication for over 10 years

    東日國際傳媒集團,以成立於1993年的東日廣告公司為,下屬東日書刊公司、東日展覽服務公司、東日通標科技公司、東日國際投資顧問公司。
  6. Fujian beststarch biodegradable material co., ltd. is one of the holding companies of zhongcheng group. it is a fully integrated hi - tech company engaged in the r & d, manufacture and distribution of biodegradable masterbatches, products and several varieties of multi - functional plastic additives

    福建百事達生物材料公司為中城集團控股企業,是專業從事各種生物塑料料、生物塑料製品以及各類多功能塑料添加劑的研發、生產、銷售、科工貿一化的高科技企業。
  7. In this paper, we build three 3d finite - element models including mother rock body, hard inclusions and randomly distributed cracks and computed the stress distribution within the mother body and hard inclusions

    摘要建立了含巖石、硬包和隨機分佈的小裂紋的三維元模型,計算了包和各層實中的應力分佈。
  8. The author thinks it is of importance to make clear the legal significance of system of parental power because systematic parental power is not formed in china today. this part first summarizes the concept and legal characteristics of parental power, that is, parental power refers to a system of parent s rights and obligations of rearing, educating, protecting and supervising to minor children. parental power is right of paternity, absolute right, exclusive right, and right of control, and it has dual properties of right and obligation ; also, this section indicates that system of parental power is a component of civil law, and a legal system based on identity relationship of parents and children

    筆者首先概括了親權的概念及其法律特徵,即親權是指父對于未成年子女之身上和財產上的養育管教和保護管理的權利義務制度,親權是身份權、絕對權、專屬權、支配權,並具權利義務的雙重屬性;接著指出親權制度是民法的一個組成部分,是基於父子女的身份關系而產生的,其調整對象只於父與未成年子女間的親子關系,其性質為階級性、民族性、倫理性與團性,最後明確了親權法律規范在我國法律系中的地位。
  9. But meteor obsevers still use quadrantids to describe the annual meteor shower occurs at early janurary. in sprite of the relatively abundant of meteors, astronomers still has little knowledge about their parent comet. the possible candidate includes 96 p machholz 1, c 1490 y1 may turned into asteroid 2003eh

    儀座流星雨算是全年中的主要流星雨現象,不過,天文學家仍未能確認它的彗星是哪一顆,可能是96p梅克茲賀1號machholz 1彗星或彗星c 1490 y1可能已演變成小行星2003 eh
  10. Company brief introduction shanghai qinding machinery co., ltd, a modern company with the qualification of independent legal person, is. . .

    上海欽定機械設備公司是一家集研發設計銷售及維修於一的具獨立法人資格的規范化的現代企業,其公司上海雙飛新技術發展
  11. Whether it is a question that how big or how heavy, the oversized special project machinery and just - in - time deliveries, for oil, gas, petrochemical, energy, construction industry, mining and metallurgy projects, electronics, environmental equipment and associated industries, or whether the essential large volume raw materials for industry or agriculture use of a country, like energy, gas, coal, grains, woods, forest products, enviromental facilities, or whether the most common consumer goods for ordinary people daily use, for exampe, food, office or family furniture, construction materials, chemicals, mineral metals, health products, sports entertainment, pharmaceutical, telecommunications, textiles products, etc, or the elegant gifts crafts or toys you choose for your lovely children, your family, and your friends

    本著為中國廣大中小企業提供一流的貨運代理及各類高附加值的綜合物流服務的理念,讓您與國際接軌,與世界同步。無論您多大多重的大件機械或行業設備,或是關系國計民生的糧食木材煤炭等能源物資的運輸,還是普通百姓每日離不開的衣食住行等日常生活用品,如食品醫療服裝衣物家庭裝修要用的五金工具建築材料傢具等,或冰箱彩電電腦手機等家用電器,或您為父孩子親友精心采購的玩具工藝禮品等,大連泛海通達貨運代理公司為您精心設計了多種海運空運公路及鐵路的單項運輸服務或綜合立物流服務解決方案。
  12. The major tasks include : ( 1 ) expand the schema theorem for ga. the schema theorem with binary coding advanced by professor holland is expanded to limited integer, letter, floating point numbers the number of which value is limited, and their hybrid coding. ( 2 ) put forward replacing by the excellent chromosome ga ( recga ), superiority colony first ga ( scfga ) and improve the ga ; ( 3 ) make probability convergence analysis of recga using the theory of markov chain, random process ; ( 4 ) make convergence analysis of scfga using the principle of contractive mapping in functional analysis theory ; ( 5 ) design the test programs ( cap ) to resolve np problems ( course arrangement ) with gas ; based on recga, modify the arithmetic and then conduct tests

    主要以下幾方面工作: ( 1 )將二進制編碼遺傳演算法的模式定理擴展到由整數、字或取值個數的浮點數編碼,或它們混合編碼的遺傳演算法范圍; ( 2 )提出最佳個替換策略遺傳演算法( recga ) 、優勢群優先策略遺傳演算法( scfga ) ,對遺傳演算法進行改進; ( 3 )使用隨機過程理論markov鏈對recga進行了收斂性分析; ( 4 )使用泛函分析理論壓縮映射原理對scfga進行了收斂性分析; ( 5 )使用遺傳演算法設計了解決np類問題(排課問題)的測試程序( cap ) ,並根據recga對演算法進行改進並進行測試。
  13. Mechanical structure and support design of iter poloidal field busbar were expounded and stress analysis was carried out using fea technique

    摘要闡述了iter極向場磁系統超導線的結構及支撐設計,用元分析法對結構進行了分析。
  14. The results showed that the replacement of individual polymer by polymer blend as the matrix resin for ecmb could be applied to the design of ecmb with lower percolation threshold concentration

    結果表明,以聚酯聚乙烯共混聚合物代替單一的聚合物作為粒的載樹脂可用來設計具低突增界濃度的炭黑導電粒。
  15. Because the limited concentration that macromolecular materials absorb liquid antistatic reagent is very low, it is better if add appropriate solid powder material when preparing high - concentration antistatic master batch. there are a little precipitation in product, but no effect on use effect

    由於高分子材料吸收液抗靜電劑的極濃度較低,製作高濃度抗靜電料時,可加入合適的固粉末材料。本品少許沉澱物,不影響使用效果;使用時最好先用乾燥、潔凈的棍棒適當攪拌,以提高本品的均勻性。
  16. We can simulate the infinit and complex matrix by coupling the finit and simple base mechanism. this thesis study three dimension kinematic simulation of mechanism

    因此,機械傳動系統運動模擬問題就可以轉化為研究如何通過的、簡單的子的耦合來實現無的、復雜的的運動模擬。
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