射影群 的英文怎麼說

中文拼音 [shèyǐngqún]
射影群 英文
projective group
  • : Ⅰ動詞1 (用推力或彈力送出) shoot; fire 2 (液體受到壓力迅速擠出) discharge in a jet 3 (放出) ...
  • : Ⅰ名詞1 (物體擋住光線后映出的形象) shadow 2 (鏡中、水面等反映出來的物體形象) reflection; image...
  • : Ⅰ名詞(聚在一起的人或物) crowd; group Ⅱ量詞(用於成群的人或物) group; herd; flock
  1. Experiment and research on influence factors of wastewater treatment by ultraviolet disinfection, and come to conclusion that relations of radition intensity, turbidity, radition time, water thickness and total coleocele livability

    摘要探討了紫外線消毒在污水處理中的響因素,並得到了輻強度、濁度、水層厚度、輻強度和輻時間與總大腸菌存活率之間的關系,為消毒器的設計提供依據。
  2. If movie franchises were race horses, we could shoot a broken - legged beast like rush hour

    如果電產業是一賽馬,我們就可以殺像《尖峰時刻》這樣的瘸腿馬。
  3. From the aspects of agricultural economic and environmental ecological effects, were the effects and mechanism of rare - earth micro - fertilizer to improve the growth, development, quality and yield of the crops ; the adjustment of crops growth by influencing the number of microbial population in soil district and the function of the soil dehydrase, alkaline phosphatase, urease and sucrase ; the ecophysiological effects of alleviating the injure of acid rain, ultraviolet radiation, heavy metal on crops were illustrated ; the sureness of bee ' s use in agricultural was provided, according to the rule of the distribution and enrichment of be in crops

    摘要從農業經濟效應和環境生態效應二方面,論述了稀土肥料促進作物生長、發育,提高作物產量,改善作物品質的效應與機理;響土壤區系中微生物種數量和土壤脫氫酶、堿性磷酸酶、脲酶及蔗糖酶的功能,繼而反饋調節作物生長;緩解酸雨、紫外輻和重金屬傷害作物的生態生理學效應;並以稀土在作物體內分佈與富集規律為參考,探討了稀土農用的安全性。
  4. ( 2 ) the maximum of input - output ratio is strikingly promoted by the level of technical developing and unrestraint of resourses. and at the same time, it ’ s positively and distinctly influenced by the factors of natural resourses amount, techological support, govenment policies, labor supply, public foundation, intermediary service, maket overlay ( from high influence to low )

    ( 2 )集的資金產出率的峰值(最大值)受到集的自然資源非限制性、技術發展水平的響顯著;同時也受到外部環境因素的明顯響,由響程度從高到低排序如下:自然資源、技術支撐、政府政策、勞動力供給、公共基礎、中介服務、市場輻的提供能力。
  5. Effects of matrine injection on t ? lymphocyte subsets of patients with malignant tumor after gamma knife radiosurgery

    復方苦參注液對惡性腫瘤患者伽瑪刀放治療后t淋巴細胞亞響。
  6. Observation on yifei bushen decoction in prevention of pneumonia after radiotherapy and effect on t achroacyte subgroup

    益肺補腎湯預防放性肺炎療效及對t淋巴細胞亞響的觀察。
  7. When the frequency approaches zero, the factor approaches zero correspondingly ; 2 ) the amplitude of interaction factors changes with the incident angle of rayleigh waves and reaches maximum when is zero. moreover, with the increase of, the wave period shortens apparently ; ( 3 ) the amplitude of interaction factors decreases as the pile spacing increases and approaches to zero when the pile spacing is 15 ; 4 ) the amplitudes of interaction factors increase clearly with the increasing stiffness ratio of pile to soil ; 5 ) the lat eral seismic response of fixed - head pile groups is much smaller than that of free - head pile groups. moreover, the pile - group effects induced by rayleigh waves can be neglected ; 6 ) the lateral seismic response of piles at different location differs from each other

    得到了以下結論: 1 )樁的相互作用因子隨頻率呈周期性變化,在振動頻率比較低的情況下,樁的橫向相互作用因子也較低,當頻率趨近於零時,相互作用因子也趨近於零; 2 )樁的相互作用因子的幅值隨瑞利波入角度的變化而變化,在= 0情況下幅值最大,且隨入角度的增加,波動的周期明顯縮短; 3 )樁的相互作用因子的幅值隨著樁與樁間距的增加而減小,至s d = 15時,樁的相互作用因子基本趨近於0 ; 4 )在頻率比較低時,相互作用因子幅值隨樁土相對剛度比的增加而顯著增加; 5 )樁頂固接可以有效地降低樁的橫向地震響應幅值,由瑞利波產生的樁效應可以忽略不計; 6 )樁中不同樁位的樁的橫向地震響應是不同的,每根樁所在的樁位對其橫向地震響應有很大的響;刀樁數的增加並不能減小樁的橫向動力響應。
  8. Based on these foundations, we give a perfect scheme of the bbo opos : single pass amplification coefficient of the opg under different pump intensity is calculated ; collinear type - i and type - ii phase matching tuning curve pumped by the q switch nd : yag various harmonics as well as noncollinear type - i tuning curve are calculated in details ; the effect of the walkoff for the nonlinear effect coefficient and the group velocity matching are analyzed ; the acceptance angle in parametric process is calculated ; the numerical threshold of the bbo opo is calculated ; the process of the saturation and depletion of the pump beam are analyzed ; the relationship of the conversion efficiency and reflectance of output mirror are discussed ; various linewidth controlling methods are discussed ; the improvement of the beam quality applying the unstable cavity is discussed ; and the crystal bbo design is considered

    在此基礎上,給出了一整套bbo - opo激光參數設計方案:計算了不同泵浦強度下的參量放大倍數;詳細計算了在nd : yag調q激光器各次諧波泵浦條件下的共線類和類相位匹配的調諧曲線,以及非共線類相位匹配調諧曲線;分析了走離角對非線性系數和速匹配的響;計算了參量過程的允許角;計算了bbo - opo的理論閾值條件;分析了飽和與泵浦光束的消耗過程;給出了轉換效率與超過泵浦閾值的倍數的關系;討論了轉換效率與輸出鏡反率的關系;討論了線寬控制的各種方法;研究了利用非穩腔改善光束質量的方法;考慮了bbo晶體的設計。
  9. Between the posts were ranged the milchers, each exhibiting herself at the present moment to a whimsical eye in the rear as a circle on two stalks, down the centre of which a switch moved pendulum - wise ; while the sun, lowering itself behind this patient row, threw their shadows accurately inwards upon the wall

    要被擠奶的牛都被安排在柱子中間,此刻讓一個異想天開的人從後面看來,排在那兒的每一頭牛就像一個圓環拴在兩根木樁上,中間的下方是一隻來回擺動的鐘擺這時候向草棚後面落去的夕陽,把這能夠容忍的牛子精確地投到草棚的墻上。
  10. The author carried out a comprehensive analysis and study on the competitive characteristics of shanghai in previous nationals games, and revealed the following findings : in the competition in the 5 ( superscript th ) to 10 ( superscript th ) national games, shanghai was able to exert its competitive strength steadily in the event groups of speed and power, accuracy, difficulty and beauty, and grapple ; while the change of its competitive strength in the event groups of speed, net involved competition, same court competition, and endurance, had directly affected the change of its position ; in addition, it is hopeful for events such as weight lifting, boating, shooting, table tennis and water ballet to become a new group of winning events of shanghai in national games

    摘要對上海在歷屆全運上競技運動特徵進行分析,結果顯示:在5 ~ 10屆全運會比賽上,速度力量性項、準確類、難美類和格鬥對抗性項能穩定地發揮其競技實力,而速度、隔網對抗、同場對抗與耐力類項競技實力的變化直接響到名次的變遷;舉重、劃船、擊、乒乓球、花樣游泳等項目有望成為上海全運會新一輪的制勝項目。
  11. Date integration technique was used to analyze the relationship between monthly mean daily clearness index kt and s, the ration of monthly mean daily sunshine duration to possible sunshine duration as well as that of monthly mean daily direct transmittance kb. based on data from 1957 to 2000, a series of kt and kb estimation models with different temporal and spatial scales were established. furthermore, the distributions of kt and kb from january to december in chongqing were mapped by kriging interpolation for long - term mean

    大氣輻過程模擬通過晴空指數、直接透率等綜合描述大氣對太陽輻響的參數,採用重慶市及其周邊地區1957 - 2000年日站觀測的月輻資料和常規月氣象觀測資料,利用數據集技術,建立了不同時空尺度的太陽輻估算模式;使用kriging插值法,完成了重慶市氣候平均狀況下各月晴空指數、直接透率的空間制圖。
  12. In this paper, we use the methods and techinques of the matrix calculus etc. to determine the form of homomorphism of group from psln ( f ) to psln ( k ) with n 3 ( f, k be fields )

    本文是在文獻[ 19 ] , [ 20 ]研究的基礎上繼續研究,確定了特徵為2的域上同維特殊線性的非平凡同態的具體形式。
  13. In the thesis, i choose the horizontal and symbiotic industrial cluster basing on the natural resources as the objects to study, and make full use of knowledges from many subjects, including : economy, management, complex science, math, computing simulation, etc. through the idea of " down to up ", i make every individuality ( company ) inside the industrial clusters as a cell ; and choose techological support, labor supply, natural resourses reserve, maket overlay, intermediary service, public foundation, govenment policies as the outside influencing features ; and choose total assets, total production value, output ratio of capital as the indexes of system characters. then, i establish a computing simulation model on the optimal scale of industrial clusters basing on cellular automata model by matlab software, and simulate the shifts of characters of sigle cell according to the changing environments

    本文主要以基於自然資源稟賦的水平共生型產業集為研究對象,綜合應用現代經濟學、管理學、復雜性科學、數學和計算機模擬方法等多學科的知識,吸納「自下而上」的思想,選取技術支撐、勞動力供給、自然資源、市場輻、中介服務、公共基礎、政府政策七個變量作為集成長的外部響因素以及總資產、總產值和資金產出率作為集的系統特徵指標,以產業集(系統)內部的個體企業為單位元胞,參照自適應、自組織的自然演化機制模擬單位元胞自身特質受到周邊環境的變化而改變,採用元胞自動機模型和matlab軟體,建立一個基於元胞自動機模型的產業集規模演化的計算機模擬模型。
  14. The parallelization of image reconstruction by convolution back projection with narrow fan - beam based on workstations cluster can solve fast image reconstruction of high power x - ict, and the speed of parallel image reconstruction relates to the numbers of workstations involved

    本論文採用窄角扇束卷積反投圖像重建在工作站機上的并行實現能解決高能x線工業ct機的快速圖像重建問題,并行圖像重建的速度與參與并行實現的工作站數有關。
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