finite quantity 中文意思是什麼

finite quantity 解釋
有限量
  • finite : adj. 有限的；【語法】限定的；【數學】有窮的，有盡的。n. 〈the finite〉 有限（性）； 〈集合詞〉有限物。adv. -ly ,-ness n.
  • quantity : n 1 量 （opp quality）; 分量，數量；額；【物理學】值，參量。2 〈pl 〉大量，大宗，大批，許多。3 定...
  1. The content of this thesis, through the deformation destruction process of th e typical nanlidu landslide along the national highway 318, uses the finite unit a nalysis of computation, revealing the elastic, plastic stress and displacement of each joint inside the slide area pointing out the distribution range of the tension stress and the plastic deformation range, computering the stability safety factor of the slide area, gaining the fixed quantity, quota that evaluates the stability of the slide area, revealing the position of the slide area which is most likely to los e its stability, thus, it can provide theoretic proof for the programs which renova te landslides

    本文的研究內容是通過318國道南里渡典型滑坡的變形破壞過程，採用有限元計算分析，揭示滑體內部每個節點上的彈、塑性應力及位移，找出拉應力分佈區和塑性變形區，計算滑體穩定安全系數，得出衡量滑體穩定的定量指標，揭示滑體最可能失穩的部位，從而為滑坡整治方案提供理論依據。
  2. This paper mainly aims at the strategic demands for large - aperture lightweight mirror proposed by high - tech development. its main research contents are : select material blank for lightweight mirror according to physical and chemical properties of optical glass ; analyze and calculate the deformation quantity of the mirror with finite element method ; design and optimize mirror body structure of 400 lightweight plane mirror and 450 lightweight spherical mirror, analyze glass cutting principle, design specisl - use grinding wheel structure, select reasonable technological parameters to implement the processing of weight reduction holes on 400 plane mirror ; analyze etching mechanism of hydrofluoric acid, look for the technological parameters such as the optimal acid concentration and etching time etc. ; eliminate the stress of weight reduction holes and micro - cracks on 400 lightweight plane mirror ; discuss the processing principle and

    本論文的研究主要是瞄準國家高技術對大口徑輕型鏡的戰略需求而開展的。主要研究內容是：根據光學玻璃的物理與化學性能，選擇輕型鏡坯材料；用有限元法對鏡子的變形進行分析、計算，找出變形規律，優化設計400mm輕型平面鏡、 450mm輕型球面鏡鏡體結構；分析玻璃切削原理，設計專用磨輪結構，選擇合理工藝技術參數，完成400mm平面鏡輕量化減重孔的加工；分析氫氟酸腐蝕光學玻璃機理，尋找最佳酸濃度、腐蝕作用時間等工藝參數，實現400mm平面鏡減重孔應力與微裂紋的消除；討論分離器加工原理和工藝技術特點，完成400mm平面輕型鏡面形加工。
  3. From experimental result, i preliminarily know that eps is good thermal insulation material because the absorption of water is low and heat insulation is good, it is practicable at preserving temperature field of frozen earth roadbed and bringing frozen disaster under control ; second, according to the analysis of the eps that is applied into practical project, i have studied the practical effect which eps preserve roadbed temperature field, and the influence that was made after building field. i have get that eps can influence moisture content and frozen upper limit, through practical measuring data, i have studied freezing and expanding quantity and melting and submerging quantity during a complete frozen and melting cycle as well as have expanded and proved the practical application effect of eps with some reference significance to deep research of some connected problems. finally, through computer data analysis, setting up the analytical model of finite unit, i have simulated the temperature field of roadbed heat preservation, then expounded and proved that the height of embankment influenced the effect of thermal insulation material

    其一是對聚苯乙烯泡沫塑料（ eps ）保溫板以及天然路基土層、路堤填料進行了室內試驗分析，結合國內外現在的有關科研成果，綜合確定其各項特徵參數；從試驗結果初步認識到聚苯乙烯泡沫塑料是一種吸水率低，隔熱性好的保溫材料，在凍土路基溫度場的保護和凍害治理方面是可行的；其二通過eps保溫板在現場工程實踐中的應用分析，研究了保溫板在保護路基土層溫度場的實際效果以及修築路堤后造成的影響，保溫板對土體含水量、凍結上限的影響，通過實測資料，研究了在一個完整的凍融周期內整個路基的凍脹量和融沉變形量，論證了保溫板的實際應用效果，對有關問題的進一步研究和相關工程設計具有參考意義；其三，通過計算機數值分析，建立有限元分析模型，對保溫路基的溫度場進行了模擬計算，論證了路堤高度對保溫材料效果的影響。
  4. Then the isoparametric finite - difference three - dimensional transient groundwater numerical model is presented. visual modflow, the most popular standard visualization software package approved by the hydraulic scientists and technicians on simulating the groundwater flow is used to simulate and calibrate the groundwater level and quantity of the research area. at last, the changes of the hydraulic head and the produced quantity in the future were predicted according to the tested parameter and the modified model

    在水文地質概念模型的基礎上，進一步建立了研究區完整的三維有限差分非穩定流數學模型，利用目前國際上最盛行，且被各國同行一致認可的三維地下水流模擬軟體? ? visualmodflow對該區地下水的水位和水量進行模擬求解，最後，利用識別的參數和驗證后的模型預測了今後的水位變化趨勢和可開采量。
  5. The numerical reconstruction algorithm of digitally sampled holograms, deduced from the scalar quantity diffraction theory, is investigated. the serious recording limitations due to the finite size and resolution of ccd are detailed discussed

    根據標量衍射理論，討論了利用菲涅耳衍射公式對數字無透鏡傅里葉變換全息術的數值實現，並進一步討論了ccd參數對數字全息圖記錄的限制條件。
  6. Ballistic missile system is a very complicated system, which has its features, such as high cost, finite quantity, and separate launching pad, etc

    摘要彈道導彈系統是一個非常復雜的系統，有其自身的特點，其造價昂貴，數量有限，發射點也很分散。
  7. Property of the new instance to a system - supplied message that describes the error, such as " the number encountered was not a finite quantity. " this message takes into account the current system culture

    屬性初始化為系統提供的、描述錯誤的消息，如「遇到的數字不是有限的數量。 」 。此消息將考慮當前系統區域性。
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